Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – Ethylenically unsaturated reactant admixed with either...
Patent
1981-06-08
1983-01-25
Griffin, Ronald W.
Synthetic resins or natural rubbers -- part of the class 520 ser
Synthetic resins
Ethylenically unsaturated reactant admixed with either...
526290, 528306, C08G 6376, C08L 6704
Patent
active
043704468
ABSTRACT:
A method for the manufacture of a polybutadiene-modified unsaturated polyester, comprising the steps of: (I) reacting (A) an .alpha.,.beta.-unsaturated dicarboxylic acid or anhydride with (B) at least one compound selected from the group consisting of (i) air-drying allyl compounds, (ii) animal and vegetable oils or derivatives thereof and (iii) dicyclopentadiene or derivatives thereof at a (B)/(A) molar ratio within the range of from 0.8 to 1.2, and (II) reacting the resultant reaction product with (C) at least one compound selected from the group consisting of .alpha.,.omega.-polybutadiene glycol and .alpha.,.omega.-hydrogenated polybutadiene glycol. A polybutadiene-modified unsaturated polyester comprising said polybutadiene-modified unsaturated polyester and a polymerizable monomer possessing at least one double bond.
REFERENCES:
patent: 4148765 (1979-04-01), Nelson
patent: 4202805 (1980-05-01), Kato et al.
patent: 4233432 (1980-11-01), Curtis
patent: 4246367 (1981-01-01), Curtis
patent: 4299742 (1981-11-01), Belder et al.
patent: 4299950 (1981-11-01), Iwata et al.
Chemical Abstracts, vol. 76, No. 10, Mar. 6, 1972, item 46874K.
Fuzii Tadashi
Izumi Hirobumi
Maekawa Iwao
Toyoda Tsutomu
Griffin Ronald W.
Hitachi Chemical Company Ltd.
Hueschen Gordon W.
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