Stock material or miscellaneous articles – Structurally defined web or sheet – Discontinuous or differential coating – impregnation or bond
Patent
1978-07-07
1981-02-10
Hess, Bruce H.
Stock material or miscellaneous articles
Structurally defined web or sheet
Discontinuous or differential coating, impregnation or bond
474270, 92 47, 198844, 198847, 285226, 428286, 428287, 428458, 428483, B32B 1508, B65G 1534, F16G 126
Patent
active
042502233
ABSTRACT:
An elastomeric expansion belt material includes an under layer having a heat resistant or insulating fabric, or matting, such as an asbestos fabric, carried by a polymerizable elastomer vulcanized to a heat shield including one or more layers of a metal foil, such as aluminum, and a polyester film, such as polyethylene terephthalate having the metal foil on the inner, or heat contacting surface. The heat shield substantially doubles the temperature resistance of the asbestos carried elastomer and substantially increases its resistance to chemically corrosive gases and particulate material.
REFERENCES:
patent: 3315704 (1967-04-01), Shire
patent: 3463516 (1969-08-01), Munton
patent: 3647247 (1972-03-01), Pintard et al.
patent: 4101150 (1978-07-01), Thawley et al.
Dearborn Rubber Company
Hess Bruce H.
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