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GB741570A - Improvements in or relating to photopolymerisation - Google Patents

Improvements in or relating to photopolymerisation

Info

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
Application number
GB103653A
Inventor
John Lou Crandall
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
EIDP Inc
Original Assignee
EI Du Pont de Nemours and Co
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by EI Du Pont de Nemours and Co filed Critical EI Du Pont de Nemours and Co
Priority to GB103653A priority Critical patent/GB741570A/en
Publication of GB741570A publication Critical patent/GB741570A/en
Expired legal-status Critical Current

Links

Classifications

    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08FMACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
    • C08F2/00Processes of polymerisation
    • C08F2/46Polymerisation 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.
GB103653A 1953-01-13 1953-01-13 Improvements in or relating to photopolymerisation Expired GB741570A (en)

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)

* Cited by examiner, † Cited by third party
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

Cited By (3)

* Cited by examiner, † Cited by third party
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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