Dennis O Vaughan

US Patent:

43954596, Jul 26, 1983

Filed:

Oct 27, 1980

Appl. No.:

6/200894

Inventors:

C. George Herschdorfer - Port Chester NY
Dennis J. Vaughan - Anderson SC

International Classification:

B29D 714
B29D 716
B29D 904
B29D 2304

US Classification:

428391

Abstract:

A process of producing reinforced laminates from crosslinkable thermoplastic olefin polymer material. In the process, a normally solid, high molecular weight crosslinkable thermoplastic olefin polymer containing a catalyst which reacts with and effects crosslinking of the polymer and which has a decomposition temperature above the melting temperature of the polymer, is heated to a molten state at a temperature above the polymer melting temperature but below the catalyst decomposition temperature. A continuous nonreinforced sheet is then formed from the molten polymer at a temperature below the decomposition temperature and is applied to at least one surface of a substrate to form a laminate. The laminate is then heated under pressure to a temperature above the decomposition temperature of the catalyst to effect substantially complete crosslinking of the polymer and is cooled to a temperature below the polymer melting temperature to a self-supporting state to fix the shape of the laminate.

US Patent:

42921066, Sep 29, 1981

Filed:

Jun 25, 1979

Appl. No.:

6/051837

Inventors:

C. George Herschdorfer - Port Chester NY
Dennis J. Vaughan - Anderson SC

Assignee:

Clark-Schwebel Fiber Glass Corp. - White Plains NY

International Classification:

B29D 714
B29D 716
B29D 904
B29D 2304

US Classification:

156243

Abstract:

A process for producing reinforced laminates from crosslinkable thermoplastic olefin polymer material. In the process, a normally solid, high molecular weight crosslinkable thermoplastic olefin polymer containing a catalyst which reacts with and effects crosslinking of the polymer and which has a decomposition temperature above the melting temperature of the polymer, is heated to a molten state at a temperature above the polymer melting temperature but below the catalyst decomposition temperature. A continuous nonreinforced sheet is then formed from the molten polymer at a temperature below the decomposition temperature and is applied to at least one surface of a substrate to form a laminate. The laminate is then heated under pressure to a temperature above the decomposition temperature of the catalyst to effect substantially complete crosslinking of the polymer and is cooled to a temperature below the polymer melting temperature to a self-supporting state to fix the shape of the laminate.