Brian C Swift

US Patent:

6638882, Oct 28, 2003

Filed:

Oct 9, 1998

Appl. No.:

09/169719

Inventors:

Clarence H. Helbing - Shelbyville IN
Brian Lee Swift - Morristown IN

Assignee:

Knauf Fiber Glass GmbH - Shelbyville IN

International Classification:

B32B 1706

US Classification:

442180, 442331, 524596, 524841, 264109, 264257, 156181, 525504

Abstract:

The present invention relates to methods of preparing improved fiber glass compositions using an improved resin binder. The resin binder comprises an aqueous solution of a resole resin, a catalyst comprising an ammonia salt of an aryl sulfonic acid, and optional binder modifiers. It has been found that the use of ammonium aryl sulfonate salts in resin binder compositions, as in the present invention, provides an enhanced cure rate and also enables manufacture of a fiber glass composition exhibiting enhanced uncured storage properties, increased thermal stability, and reduced corrosiveness to metals.

US Patent:

6555616, Apr 29, 2003

Filed:

Aug 1, 2000

Appl. No.:

09/601419

Inventors:

Clarence Helbing - Shelbyville IN
Brian Lee Swift - Morristown IN

Assignee:

Knauf Fiber Glass GmbH - Shelbyville IN

International Classification:

C08L 6106

US Classification:

524841, 528129

Abstract:

The prevent invention relates to improved fiber glass compositions and to methods of preparing such compositions using an improved resin binder. The resin binder comprises an aqueous solution of a resole resin, a catalyst comprising an ammonia salt of an aryl sulfonic acid, and optional binder modifiers. It has been found that the use of ammonium aryl sulfonate salts in resin binder compositions, as in the present invention, provides an enhanced cure rate and also enables manufacture of a fiber glass composition exhibiting enhanced uncured storage properties, increased thermal stability, and reduced corrosiveness to metals.