Grant W Doney

US Patent:

20040087724, May 6, 2004

Filed:

Oct 31, 2002

Appl. No.:

10/285268

Inventors:

Grant Doney - Acworth GA, US
Keith Salsman - Hoschton GA, US

International Classification:

C08F293/00

US Classification:

525/244000, 525/263000, 525/267000, 525/273000, 525/294000

Abstract:

A process for manufacturing block polymer or copolymer from isotactic polypropylene. Polyolefins are introduced into an extruder. Free radical generator is mixed with the polyolefins to form a mixture at room temperature for free radical formation. The mixture is brought up to a temperature of between 175 C. to 220 C. Chain degradation of the polyolefins is induced by the free radical formation to form degraded polymer. Alkenically unsaturated monomers or polymer segments are mixed with the degraded polymer to form a second mixture. The temperature of the second mixture may be lowered to a temperature of between 90 C. to 150 C. The temperature of the second mixture is then adjusted to a temperature between 100 C. to 250 C. to form a novel block polymer or copolymer.

US Patent:

20120067526, Mar 22, 2012

Filed:

Sep 20, 2011

Appl. No.:

13/237706

Inventors:

Grant William Doney - Lagrange GA, US
Roger Harris - Dalton GA, US
Robert Keith Salsman - Hoschton GA, US

Assignee:

BEAULIEU GROUP LLC - Dalton GA

International Classification:

B32B 37/08

US Classification:

156498

Abstract:

A method for binding a greige carpet and a secondary backing material using a hot melt adhesive is disclosed. A heated application roll may be provided and the secondary backing material may be contacted with the hot melt adhesive and greige carpet and pressed against the heated application roll.