Acrylate material comprising sequentially polymerized four composition particle having radially graduated transitional properties
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United States of America Patent
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Jun 7, 1983
Issued Date -
N/A
app pub date -
Apr 2, 1982
filing date -
Oct 29, 1980
priority date (Note) -
Expired
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Abstract
A four composition acrylate particle optimizes four sequence formulations: (1) beginning with a cross-linked elastomer core upon which (2) a successive layer of a principal quantity of cross-linked elastomer, which includes a graft-linking component, is polymerized, which in turn is (3) protectively encapsulated by a successively polymerized shell, which also includes a graft-linking component, and in turn is coated by (4) a final transition coating. The particle is chemically bonded into a unit and provides a radially graduated transition between the significantly different properties of the principal elastomer in the particle and the transition coating which is adapted in composition to a matrix system with which the particles may be blended.
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