Bound antioxidant masterbatches

Details Bound antioxidant masterbatches Bound antioxidant masterbatches

1989-07-07

1990-09-11

Bleutge, John C.

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

Synthetic resins

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

525279, 525426, 523351, 524530, C08F28500, C08F25502, C08L 5106

Patent

active

049564102

ABSTRACT:
A process for preparing a bound antioxidant polymer concentrate is described which comprises grafting one or more acrylic or alkylacrylic esters or amides containing a hindered-amine group onto the polymer in the presence of a radical generator at a temperature of 100.degree. to 350.degree. C., the molar ratio of said radical generator to said ester or amide being from 0.001: to 1:1, the reaction being continued for a time such that the melt viscosity of the polymer which increases initially during the reaction has reduced to a level which permits the concentrate to be homogeneously blended subsequently into a unstabilized polymer.

REFERENCES:
patent: 3705166 (1972-12-01), Murayama
patent: 3862265 (1975-01-01), Steinkamp
patent: 4032592 (1977-06-01), Oglihara et al.
patent: 4659796 (1987-04-01), Horie
patent: 4731393 (1988-03-01), Karrer
patent: 4743657 (1988-05-01), Rekers

Affiliated with

Also associated with

Rating

Bound antioxidant masterbatches does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Bound antioxidant masterbatches, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Bound antioxidant masterbatches will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1185262