Robert O Quick

US Patent:

6638884, Oct 28, 2003

Filed:

Apr 17, 2001

Appl. No.:

09/836938

Inventors:

Robert H. Quick - Sumner WA
Daniel M. Shellhammer - Auburn WA
Michael R. Hansen - Seattle WA

Assignee:

Weyerhaeuser Company - Federal Way WA

International Classification:

D21H 1100

US Classification:

442417, 442 59, 442414, 442394, 1621641, 162174, 162175, 162179, 1621811, 162183, 162184, 162185

Abstract:

A highly densifiable wood pulp product is disclosed. In one embodiment, the densifiable product includes fibers having low coarseness, preferably having a fiber coarseness less than about 22 mg/100 m, and a densifying agent. In another embodiment, the densifiable product further includes fibers having coarseness greater than about 22 mg/100 m. Juvenile wood fibers are the preferred source of fibers having low coarseness. A densified pulp product formed by compacting a fibrous composite that includes fibers having a fiber coarseness less than about 22 mg/100 m, a densifying agent, and optionally, fibers having coarseness greater than about 22 mg/100 m is also disclosed. The pulp products can be advantageously incorporated into absorbent articles and can optionally further include superabsorbent material. Methods for forming the densifiable and densified fibrous products are also disclosed.

US Patent:

6719862, Apr 13, 2004

Filed:

May 30, 2003

Appl. No.:

10/449184

Inventors:

Robert H. Quick - Sumner WA
Daniel M. Shellhammer - Auburn WA
Michael R. Hansen - Seattle WA

Assignee:

Weyerhaeuser Company - Federal Way WA

International Classification:

B31B 160

US Classification:

156 60, 156 61, 1621641, 162174, 162175, 162179, 1621811, 1621812, 162183, 162184, 162185, 442 59

Abstract:

A highly densifiable wood pulp product is disclosed. In one embodiment, the densifiable product includes fibers having low coarseness, preferably having a fiber coarseness less than about 22 mg/100 m, and a densifying agent. In another embodiment, the densifiable product further includes fibers having coarseness greater than about 22 mg/100 m. Juvenile wood fibers are the preferred source of fibers having low coarseness. A densified pulp product formed by compacting a fibrous composite that includes fibers having a fiber coarseness less than about 22 mg/100 m, a densifying agent, and optionally, fibers having coarseness greater than about 22 mg/100 m is also disclosed. The pulp products can be advantageously incorporated into absorbent articles and can optionally further include superabsorbent material. Methods for forming the densifiable and densified fibrous products are also disclosed.

US Patent:

62317210, May 15, 2001

Filed:

Oct 9, 1998

Appl. No.:

9/169705

Inventors:

Robert H. Quick - Sumner WA
Daniel M. Shellhammer - Auburn WA
Michael R. Hansen - Seattle WA
Richard H. Young - Maple Valley WA

Assignee:

Weyerhaeuser Company - Federal Way WA

International Classification:

D21H 1100

US Classification:

1621641

Abstract:

A highly densifiable wood pulp product is disclosed. In one embodiment, the densifiable product includes fibers having low coarseness, preferably having a fiber coarseness less than about 22 mg/100 m, and a densifying agent. In another embodiment, the densifiable product further includes fibers having coarseness greater than about 22 mg/100 m. Juvenile wood fibers are the preferred source of fibers having low coarseness. A densified pulp product formed by compacting a fibrous composite that includes fibers having a fiber coarseness less than about 22 mg/100 m, a densifying agent, and optionally, fibers having coarseness greater than about 22 mg/100 m is also disclosed. The pulp products can be advantageously incorporated into absorbent articles and can optionally further include superabsorbent material. Methods for forming the densifiable and densified fibrous products are also disclosed.