GB741570A - Improvements in or relating to photopolymerisation - Google Patents
Improvements in or relating to photopolymerisationInfo
- Publication number
- GB741570A GB741570A GB103653A GB103653A GB741570A GB 741570 A GB741570 A GB 741570A GB 103653 A GB103653 A GB 103653A GB 103653 A GB103653 A GB 103653A GB 741570 A GB741570 A GB 741570A
- Authority
- GB
- United Kingdom
- Prior art keywords
- alpha
- benzoin
- methyl
- vinyl
- parts
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
- C08F2/00—Processes of polymerisation
- C08F2/46—Polymerisation initiated by wave energy or particle radiation
Landscapes
- Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Addition Polymer Or Copolymer, Post-Treatments, Or Chemical Modifications (AREA)
- Graft Or Block Polymers (AREA)
Abstract
Polymerizable ethylenically unsaturated compounds are photopolymerized by irradiation with radiation of wavelength between 2500 and 7000 in the presence as a catalyst of an alpha-hydrocarbon substituted acyloin of the formula <FORM:0741570/IV(a)/1> where Ar represents a monocyclic aromatic radical having its free valency bond attached to nuclear carbon, and R represents a monovalent hydrocarbon radical containing 1 to 9 carbon atoms, such as alpha-methyl benzoin, alpha-ethyl benzoin, alpha-propyl benzoin, alpha-tertiary butyl benzoin, alpha-(n-nonyl) benzoin, alpha-allyl benzoin, alpha-phenyl benzoin, and alpha-benzyl benzoin. Ethylenically unsaturated compounds specified are isoprene, chloroprene, linear polybutadienes, vinyl acetate, vinyl propionate, diallyl phthalate, methyl vinyl ketone, vinyl ethers, styrene, divinyl benzene, methyl acrylate, ethyl acrylate, methyl methacrylate, isobutyl methacrylate, methyl alpha-chloracrylate, ethylene glycol dimethacrylate, tetraethylene glycol dimethacrylate, glycerol trimethacrylate, methacrylic anhydride, acrylonitrile, methacrylonitrile, methacrylamide, alkyd resins derived from glycerol, phthalic acid, and methacrylic acid, diethyl fumarate, unsaturated polyesters derived from maleic and fumaric acids and ethylene glycol, diethylene glycol, triethylene glycol, propylene glycol, pentamethylene glycol, and pentaerythritol which may also contain coconut oil, vinyl and vinylidene chlorides, and divinyl formal, and mixtures thereof. Also present in the reaction mixture may be allyl glycidyl ether as an inhibitor of colour formation. The process may be carried out by bulk, solution, emulsion, or granular polymerization procedures. Specifications 708,643 and 741,294, [Group XX], are referred to.ALSO:Alpha-benzyl benzoin is prepared by adding sodium methoxide (10.8 parts) to benzoin (20 parts) dissolved in dry benzene (176 parts) in a nitrogen atmosphere. After stirring and refluxing for 5 hours the reaction mixture is cooled to room temperature and benzyl bromide (51.3 parts) is added. Stirring is continued for 1 hour at room temperature and then for 5 hours at 50-55 DEG C., the reaction mixture is filtered and the filtrate distilled under reduced pressure leaving a residue of alpha-benzyl benzoin which is recrystallized from heptane and then from alcohol. Specification 708,643 and 741,294, [Group XX], are referred to.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB103653A GB741570A (en) | 1953-01-13 | 1953-01-13 | Improvements in or relating to photopolymerisation |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB103653A GB741570A (en) | 1953-01-13 | 1953-01-13 | Improvements in or relating to photopolymerisation |
Publications (1)
Publication Number | Publication Date |
---|---|
GB741570A true GB741570A (en) | 1955-12-07 |
Family
ID=9715024
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB103653A Expired GB741570A (en) | 1953-01-13 | 1953-01-13 | Improvements in or relating to photopolymerisation |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB741570A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2283491A (en) * | 1993-10-20 | 1995-05-10 | Nat Starch Chem Corp | Monoacrylate ester coating compositions |
GB2283975A (en) * | 1993-10-20 | 1995-05-24 | Nat Starch Chem Corp | Monoacrylate ester coating compositions |
-
1953
- 1953-01-13 GB GB103653A patent/GB741570A/en not_active Expired
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2283491A (en) * | 1993-10-20 | 1995-05-10 | Nat Starch Chem Corp | Monoacrylate ester coating compositions |
GB2283975A (en) * | 1993-10-20 | 1995-05-24 | Nat Starch Chem Corp | Monoacrylate ester coating compositions |
GB2283975B (en) * | 1993-10-20 | 1998-05-06 | Nat Starch Chem Corp | Method of forming adhesive bond |
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