GB924247A - Improvements in or relating to the manufacture of unsaturated polyester resins - Google Patents

Improvements in or relating to the manufacture of unsaturated polyester resins

Info

Publication number
GB924247A
GB924247A GB4376459A GB4376459A GB924247A GB 924247 A GB924247 A GB 924247A GB 4376459 A GB4376459 A GB 4376459A GB 4376459 A GB4376459 A GB 4376459A GB 924247 A GB924247 A GB 924247A
Authority
GB
United Kingdom
Prior art keywords
glycol
acid
relating
manufacture
ester
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
GB4376459A
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.)
L I R C LAB ITALIANI DI RICERC
Original Assignee
L I R C LAB ITALIANI DI RICERC
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 L I R C LAB ITALIANI DI RICERC filed Critical L I R C LAB ITALIANI DI RICERC
Publication of GB924247A publication Critical patent/GB924247A/en
Expired legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
    • C08G63/00—Macromolecular compounds obtained by reactions forming a carboxylic ester link in the main chain of the macromolecule
    • C08G63/02—Polyesters derived from hydroxycarboxylic acids or from polycarboxylic acids and polyhydroxy compounds
    • C08G63/12—Polyesters derived from hydroxycarboxylic acids or from polycarboxylic acids and polyhydroxy compounds derived from polycarboxylic acids and polyhydroxy compounds
    • C08G63/52—Polycarboxylic acids or polyhydroxy compounds in which at least one of the two components contains aliphatic unsaturation

Landscapes

  • Chemical & Material Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Organic Chemistry (AREA)
  • Polyesters Or Polycarbonates (AREA)
  • Macromonomer-Based Addition Polymer (AREA)

Abstract

Unsaturated polyesters are made by effecting ester-interchange between dimethyl itaconate and a glycol and polycondensing the resulting glycol ester. The glycol may be ethylene-, propylene- or diethylene-glycol and the reaction mixture may also contain a saturated dicarboxylic acid or anhydride (e.g. adipic acid, isophthalic acid or phthalic anhydride). Catalysts for the reaction are the oxides or borates of zinc, lead or magnesium, boric acid and aromatic sulphonic acids. The polyesters may be copolymerized with vinyl monomers (e.g. styrene) in the presence of a vinyl polymerization catalyst (e.g. benzoyl peroxide or hydroperoxide or methyl ethyl ketone peroxide) and an accelerator (e.g. a manganese or cobalt salt). Specification 924,248 is referred to.
GB4376459A 1959-01-12 1959-12-23 Improvements in or relating to the manufacture of unsaturated polyester resins Expired GB924247A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
IT48659 1959-01-12

Publications (1)

Publication Number Publication Date
GB924247A true GB924247A (en) 1963-04-24

Family

ID=11098803

Family Applications (1)

Application Number Title Priority Date Filing Date
GB4376459A Expired GB924247A (en) 1959-01-12 1959-12-23 Improvements in or relating to the manufacture of unsaturated polyester resins

Country Status (1)

Country Link
GB (1) GB924247A (en)

Similar Documents

Publication Publication Date Title
GB1061758A (en) Production of polyesters
GB1445926A (en) Unsaturated polyester resin composition
GB1065385A (en) Improvements in or relating to storage tanks
GB1027613A (en) Modified linear polyesters
ES358935A1 (en) Block copolyesters of linear saturated polyesters and polybutadiene-diols
ES311079A1 (en) Unsaturated polyesters with itaconic acid esters
GB924247A (en) Improvements in or relating to the manufacture of unsaturated polyester resins
GB1241698A (en) Process for the manufacture of unsaturated polyester resins
GB924500A (en) Improvements in or relating to the manufacture of unsaturated polyester resins
GB1100753A (en) Improvements in polyesterification catalysts
FR2042541A7 (en) Fatty acid polymers modifying polyesters - for surface coatings
ES381546A1 (en) Process for the preparation of high molecular weight polyesters for injection moulding purposes
GB1074225A (en) Process for preparin fibre and film forming polyesters
GB1279258A (en) Production of unsaturated polyester resins
GB852886A (en) A process for the manufacture of unsaturated polyesters and copolymers thereof
GB944499A (en) Polyester resins and process for preparing the same
GB1459000A (en) Clear stable unsaturated polyester resin/styrene solutions
GB1170983A (en) Process for the Production of Cured Products.
GB1442604A (en) Flame-retardant resins
GB788844A (en) Improvements in or relating to the copolymerisation of polyester mixtures
GB890383A (en) Synthetic unsaturated polyester resins
GB984884A (en) Polyesters of aromatic dihydric alcohols
GB1147468A (en) A process for producing unsaturated polyester resins
GB836438A (en) Unsaturated polyesters
GB1017553A (en) Improvements in or relating to the production of copolyesters