Method for suppressing bubbles in calendered elastomer

Details Method for suppressing bubbles in calendered elastomer Method for suppressing bubbles in calendered elastomer

1990-12-13

1994-03-29

Thurlow, Jeffery

Plastic and nonmetallic article shaping or treating: processes

Forming articles by uniting randomly associated particles

Stratified or layered articles

264119, 264131, 264175, 264211, 264347, B29C 4324

Patent

active

052982106

ABSTRACT:
The invention involves the use of about 1 to 4 %wt cured elastomer irregularly-shaped particles having a sieve size of about 0.7 mm +/-0.1 mm in uncured elastomer to suppress bubble formation without substantial loss of tensile strength, in calendered, cured elastomer products, such as, decorative or sealing sheet materials.

REFERENCES:
patent: 3267187 (1966-08-01), Slosberg et al.
patent: 3378506 (1968-04-01), Rockoff
patent: 3499956 (1970-03-01), Mountain
patent: 3658947 (1972-04-01), Ito et al.
patent: 3969458 (1976-07-01), Hunter
patent: 4005054 (1977-01-01), Bonnefon et al.
patent: 4196162 (1980-04-01), Stichter
patent: 4361655 (1982-11-01), Tyler
patent: 4481335 (1984-11-01), Stark, Jr.
patent: 4826638 (1989-05-01), Hopperdietzel
German Patent Application M 38 72 XII/39a; date of publication Jul. 22, 1941, reinstated and published Oct. 30, 1952.

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