CN104650366A - Light-colored liquid resin special for hot-melt pressure-sensitive adhesive and preparation method of light-colored liquid resin - Google Patents
Light-colored liquid resin special for hot-melt pressure-sensitive adhesive and preparation method of light-colored liquid resin Download PDFInfo
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- CN104650366A CN104650366A CN201310623282.6A CN201310623282A CN104650366A CN 104650366 A CN104650366 A CN 104650366A CN 201310623282 A CN201310623282 A CN 201310623282A CN 104650366 A CN104650366 A CN 104650366A
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Abstract
The invention discloses a preparation method of light-colored liquid resin special for a hot-melt pressure-sensitive adhesive. The preparation method comprises the steps of carrying out diene synthetic reaction on refined rosin and fumaric acid to prepare fumaric acid modified refined rosin, adding diethylene glycol to carry out polyester reaction, introducing linear chain group long chain acid in a polyester reaction process to prepare semi-solid rosin ester, synchronously adding an antioxidant, and finally introducing mineral oil to be mutually dissolved with semi-solid rosin ester to obtain liquid, namely the light-colored liquid resin. According to the preparation method, rosin can be taken as a basic production raw material, so that the disadvantages that domestic petroleum resin is high in price, and raw materials are not regenerable are solved, the use levels of a softening agent and a viscosity modifier are reduced, and the cost is further saved; furthermore, the preparation process is easily controlled, the emission of pollutant is completely avoided, the safety and the environmental friendliness are guaranteed, a green production idea is realized, and various indexes can meet various performance requirements of the hot-melt pressure-sensitive adhesive in which rosin resin is utilized as the thickening agent.
Description
Technical field
The present invention relates to technical field of chemistry and chemical engineering, the preparation method of the special light liquid resin of especially a kind of melt pressure sensitive gluing agent.
Background technology
At present, traditional solvent pressure-sensitive adhesive is long for time of drying, price is high, and serious environment pollution in construction process, the health of harm workmen, therefore, comparatively conventional tackifier resins comprises with synthetic materialss such as petroleum resin, terpine resin, vibrin for tackifier, but polyamide resin and vibrin due to production technique comparatively complicated, domestic Shen Shao producer relates to this field, and terpine resin raw material based on turps, price is higher is not suitable for a large amount of use.Be most widely used with petroleum resin at present, because oil is Nonrenewable resources, along with supply is fewer and feweri, the situation that supply falls short of demand is inevitable.
Summary of the invention
The invention provides the preparation method of the special light liquid resin of a kind of melt pressure sensitive gluing agent, the light color liquid resin that it prepares can substitute traditional petroleum resin, solves the high problem serious with environmental pollution of cost brought as raw material with petroleum resin.
In order to solve the problems of the technologies described above, the technical solution adopted in the present invention is:
Its preparation comprises the steps:
A, resin and fumaric acid are reacted obtained fumaric acid modified resin through diene synthesis, temperature of reaction is 200 DEG C ~ 210 DEG C, and the reaction times is 1 ~ 2 hour; Described fumaric acid accounts for 1.5% ~ 2% of described resin total mass;
B, add glycol ether and carry out pet reaction, introduce straight chain group long chain acid in pet reaction process, temperature of reaction is 250 DEG C ~ 260 DEG C, and the reaction times is 2 ~ 3 hours, obtains semi-solid state rosin ester; Described glycol ether accounts for 11% ~ 12% of described resin total mass, and described straight chain group long chain acid accounts for 0.5% ~ 1% of described resin total mass;
C, while pet reaction, add oxidation inhibitor, temperature of reaction is 263 ~ 267 DEG C, and the reaction times is 55 minutes ~ 60 minutes, and ensure that Gum Rosin color stability is being not more than No. 5 looks, described oxidation inhibitor accounts for 0.1% of described resin;
D, introduce mineral oil and mix at normal temperatures with the semi-solid state rosin ester of step B gained and dissolve each other, the reaction times is 2 ~ 3 hours, namely obtains this light color liquid resin, and described mineral oil accounts for 20% ~ 30% of described resin total mass;
Wherein, described straight chain group long chain acid is butyric acid;
Described oxidation inhibitor is four [β-(3,5-di-tert-butyl-hydroxy phenyl) propionic acid] pentaerythritol ester.
Owing to adopting technique scheme, the present invention has following beneficial effect:
1, because light color liquid resin of the present invention adopts, renewable resources---rosin is as basic production raw material, add mineral oil changed into liquid state by modification esterification, not only solve domestic petroleum resin price high, the shortcoming that raw material is non-renewable, also reduce the usage quantity of tenderizer and viscosity-controlling agent, more save cost.
2, the preparation process of liquid resin of the present invention easily controls, non-pollutant discharge can be reached completely, guarantee safety and environmental protection, realize green production theory, its indices all can meet the properties requirement that the agent of melt pressure sensitive gluing take Gum Rosin as tackifier, ensure to make finished product pressure sensitive adhesive in bonding, produce physical crosslinking in solidification process, improve the cohesive strength of glue while and there is water white transparency, the feature such as nonpoisonous and tasteless, ageing-resistant.
3, mineral oil is added, solve the problem affecting product mechanical property because tenderizer effect causes the deterioration of tackifier viscosity that traditional technology produces, UV light absorber is a kind of base oil simultaneously, mineral oil and semi-solid state rosin ester dissolve each other, make its formation liquid, while ensure that its good mobility and viscosity, the consumption of SBS can be reduced when the later stage produces pressure sensitive adhesive, can reduce costs.
embodiment:
Below in conjunction with specific examples, the invention will be further described:
Embodiment 1:
1000 kilograms of resins and 15 kilograms of fumaric acid are reacted obtained fumaric acid modified resin through diene synthesis, and temperature of reaction is 200 DEG C, and the reaction times is 1 hour, increases rosin molecular weight, synchronous raising softening temperature and acid number; Add 110 kilograms of glycol ethers and carry out pet reaction, introduce 5 kilograms of butyric acid in pet reaction process, temperature of reaction is 250 DEG C, and the reaction times is 2 hours, obtains semi-solid state rosin ester; 1 kilogram of four [β-(3 is added while pet reaction, 5-di-tert-butyl-hydroxy phenyl) propionic acid] pentaerythritol ester oxidation inhibitor, ensure that Gum Rosin color stability is being not more than No. 5 looks, ensure that melt pressure sensitive gluing agent transparency increases, make pressure sensitive adhesive more high-endization; Introduce 200 kilograms of mineral oil to mix at normal temperatures with the semi-solid state rosin ester of step B gained and dissolve each other, the reaction times is 2 hours, makes its formation liquid, namely obtains this light color liquid resin.
This light color liquid resin has following performance:
Outward appearance: near colorless transparent liquid;
Resin normal temperature viscosity: 10000 cp;
Acid number: 10mgKOH/g;
Look number: 0.
Embodiment 2:
1000 kilograms of resins and 20 kilograms of fumaric acid are reacted obtained fumaric acid modified resin through diene synthesis, and temperature of reaction is 210 DEG C, and the reaction times is 2 hours, increases rosin molecular weight, synchronous raising softening temperature and acid number; Add 120 kilograms of glycol ethers and carry out pet reaction, introduce 10 kilograms of butyric acid in pet reaction process, temperature of reaction is 260 DEG C, and the reaction times is 3 hours, obtains semi-solid state rosin ester; 1 kilogram of four [β-(3 is added while pet reaction, 5-di-tert-butyl-hydroxy phenyl) propionic acid] pentaerythritol ester oxidation inhibitor, ensure that Gum Rosin color stability is being not more than No. 5 looks, ensure that melt pressure sensitive gluing agent transparency increases, make pressure sensitive adhesive more high-endization; Introduce 300 kilograms of mineral oil to mix at normal temperatures with the semi-solid state rosin ester of step B gained and dissolve each other, the reaction times is 3 hours, makes its formation liquid, namely obtains this light color liquid resin.
This light color liquid resin has following performance:
Look number: 2;
Outward appearance: near colorless transparent liquid;
Acid number: 8mgKOH/g;
Resin normal temperature viscosity: 18000cp.
Claims (1)
1. a preparation method for the special light liquid resin of melt pressure sensitive gluing agent, is characterized in that:
Its preparation comprises the steps:
The preparation of described light color liquid resin comprises the steps:
A, resin and fumaric acid are reacted obtained fumaric acid modified resin through diene synthesis, temperature of reaction is 200 DEG C ~ 210 DEG C, and the reaction times is 1 ~ 2 hour; Described fumaric acid accounts for 1.5% ~ 2% of described resin total mass;
B, add glycol ether and carry out pet reaction, introduce straight chain group long chain acid in pet reaction process, temperature of reaction is 250 DEG C ~ 260 DEG C, and the reaction times is 2 ~ 3 hours, obtains semi-solid state rosin ester; Described glycol ether accounts for 11% ~ 12% of described resin total mass, and described straight chain group long chain acid accounts for 0.5% ~ 1% of described resin total mass;
C, while pet reaction, add oxidation inhibitor, temperature of reaction is 263 ~ 267 DEG C, and the reaction times is 55 minutes ~ 60 minutes, and ensure that Gum Rosin color stability is being not more than No. 5 looks, described oxidation inhibitor accounts for 0.1% of described resin;
D, introduce mineral oil and mix at normal temperatures with the semi-solid state rosin ester of step B gained and dissolve each other, the reaction times is 2 ~ 3 hours, namely obtains this light color liquid resin, and described mineral oil accounts for 20% ~ 30% of described resin total mass;
Wherein, described straight chain group long chain acid is butyric acid;
Described oxidation inhibitor is four [β-(3,5-di-tert-butyl-hydroxy phenyl) propionic acid] pentaerythritol ester.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310623282.6A CN104650366A (en) | 2013-11-30 | 2013-11-30 | Light-colored liquid resin special for hot-melt pressure-sensitive adhesive and preparation method of light-colored liquid resin |
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| CN201310623282.6A CN104650366A (en) | 2013-11-30 | 2013-11-30 | Light-colored liquid resin special for hot-melt pressure-sensitive adhesive and preparation method of light-colored liquid resin |
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| CN104650366A true CN104650366A (en) | 2015-05-27 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107828362A (en) * | 2017-11-26 | 2018-03-23 | 广西众昌树脂有限公司 | Spices adhesive |
| CN107858135A (en) * | 2017-11-26 | 2018-03-30 | 广西众昌树脂有限公司 | Powdery adhesive |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1443899A (en) * | 2002-03-12 | 2003-09-24 | 牛华 | Preparation method of rosen polyester sizing agent |
| CN103040672A (en) * | 2012-10-31 | 2013-04-17 | 广西众昌树脂有限公司 | Light-colored rosin resin specially used for depilatory wax and preparation method of light-colored rosin resin |
| CN103360952A (en) * | 2012-04-06 | 2013-10-23 | 广西众昌树脂有限公司 | Special modified rosin resin for road marking paint and preparation method of special modified rosin resin |
-
2013
- 2013-11-30 CN CN201310623282.6A patent/CN104650366A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1443899A (en) * | 2002-03-12 | 2003-09-24 | 牛华 | Preparation method of rosen polyester sizing agent |
| CN103360952A (en) * | 2012-04-06 | 2013-10-23 | 广西众昌树脂有限公司 | Special modified rosin resin for road marking paint and preparation method of special modified rosin resin |
| CN103040672A (en) * | 2012-10-31 | 2013-04-17 | 广西众昌树脂有限公司 | Light-colored rosin resin specially used for depilatory wax and preparation method of light-colored rosin resin |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107828362A (en) * | 2017-11-26 | 2018-03-23 | 广西众昌树脂有限公司 | Spices adhesive |
| CN107858135A (en) * | 2017-11-26 | 2018-03-30 | 广西众昌树脂有限公司 | Powdery adhesive |
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Application publication date: 20150527 |
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