Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – Mixing of two or more solid polymers; mixing of solid...
Patent
1980-10-29
1982-07-27
Seccuro, Carman J.
Synthetic resins or natural rubbers -- part of the class 520 ser
Synthetic resins
Mixing of two or more solid polymers; mixing of solid...
525 81, 525 85, 525304, 525305, 525308, 525309, 525902, C08L 3312, C08L 5100, C08F26506
Patent
active
043418830
ABSTRACT:
A four composition particulate additive for blending with a moldable acrylic matrix resin is described. The particulate additive optimizes four sequenced formulations: (1) beginning with a cross-linked elastomer core upon which (2) a successive layer of the 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 thermoplastic shell, which also includes a graft-linking component, and in turn is coated by (4) a final thermoplastic transition coating which is compatible with the matrix resin. The particle is chemically bonded into a unit and provides a graduated transition between the significantly different properties of the principal elastomer in the particle and the matrix resin with which the particles are blended. The blends produced are particularly useful in glazing and the production of sanitary-ware and other products in which impact resistance is a desired quality.
REFERENCES:
patent: 3450796 (1969-06-01), Griffin
patent: 3793402 (1974-02-01), Owens
patent: 3808180 (1974-04-01), Owens
patent: 3843753 (1974-10-01), Owens
patent: 4180529 (1979-12-01), Hofmann
Plaskolite Inc.
Seccuro Carman J.
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