Retarding depolymerization of poly(methyl methacrylate) grafted

Details Retarding depolymerization of poly(methyl methacrylate) grafted Retarding depolymerization of poly(methyl methacrylate) grafted

1996-12-19

1999-01-12

Mulcahy, Peter D.

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

Synthetic resins

Processes of preparing a desired or intentional composition...

C08K 517

Patent

active

058591044

ABSTRACT:
Depolymerization during melt processing of poly(methyl methacrylate) that is grafted onto a backbone of propylene polymer material is retarded by adding 0.025 parts to 5.0 parts of a hydroxylamine compound per hundred parts of the graft copolymer. The methyl methacrylate can be copolymerized with another monomer such as methylacrylate.

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patent: 5286791 (1994-02-01), DeNicola et al.
patent: 5411994 (1995-05-01), Galli et al.

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