Acrylic syrup and method of producing the same

Details Acrylic syrup and method of producing the same Acrylic syrup and method of producing the same

2011-03-22

2011-03-22

Mullis, Jeffrey C (Department: 1765)

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

Synthetic resins

Mixing of two or more solid polymers; mixing of solid...

C525S310000, C525S301000, C525S306000

Reexamination Certificate

active

07910659

ABSTRACT:
Disclosed is an acrylic syrup containing a vinyl monomer (A) of methyl methacrylate and a polymerized solid component (B) which is a high polymer of said vinyl monomer and has a weight average molecular weight of from 30,000 to 2,000,000 as measured by the GPC and a viscosity at 25° C. of from 0.1 to 50 Pa·s, wherein at least part of said polymerized solid component (B) is a grafted rubber obtained by graft-polymerizing said vinyl monomer with a rubbery polymer, and said grafted rubber has a large branching coefficient. The acrylic resin molded articles obtained from the acrylic syrup exhibit excellent impact resistance.

REFERENCES:
patent: 4100228 (1978-07-01), Dennis et al.
patent: 5578673 (1996-11-01), Ashton et al.
patent: 7056984 (2006-06-01), Kawabata et al.
Karaenev et al. “Phase formation and Phase Inversion . . .”, Journal of Polymer Science: Polymer Chemistry Edition, vol. 16, p. 337-342 (1978).

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