Acrylic copolymer

Details Acrylic copolymer Acrylic copolymer

2007-06-12

2007-06-12

Pezzuto, Helen L. (Department: 1713)

Synthetic resins or natural rubbers -- part of the class 520 ser

Synthetic resins

Polymers from only ethylenic monomers or processes of...

C526S319000, C526S320000, C526S322000, C526S329500

Reexamination Certificate

active

11054410

ABSTRACT:
An acrylic copolymer consisting of a first acrylic monomer represented by the following general formula (1):[where each of R1and R2represents an aliphatic hydrocarbon group whose main chain is composed of 3 or less carbon atoms, and each of R3and R4represents a hydrocarbon atom], anda second acrylic monomer represented by the following general formula (2):[where at least one of R5and R6represents an aliphatic hydrocarbon group whose main chain is composed of 4 to 60 carbon atoms, in the case where one of the R5and R6does not represent the aliphatic hydrocarbon group, it represents an aliphatic hydrocarbon group whose main chain is composed of 3 or less carbon atoms, and each of R7and R8represents a hydrogen atom],wherein the first acrylic monomer makes up 50 to 99 % of total monomer units in the copolymer.

REFERENCES:
patent: 2559635 (1951-07-01), Kenyon et al.
T Hongo, et al., “Radical Copolymerization of Methyl α-Acyloxyacrylates with Some Vinyl Monomers”, Polymer International, vol. 48, 1999, pp. 505-508.
Hitoshi Tanaka, et al., “Conversion-Dependent Molecular Weight of the Polymer in Free Radical Polymerization of Captodative Substituted (Acyloxy) Acrylates”, Macromolecules, 1997, vol. 30, pp. 4010-4012.

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