James Randall Farmer

US Patent:

59425695, Aug 24, 1999

Filed:

Aug 31, 1998

Appl. No.:

9/143757

Inventors:

Eugene R. Simmons - Vadnais Heights MN
Kevin J. Sweeney - Mahtomedi MN
Jeffrey S. Lindquist - Cottage Grove MN
Christopher E. Olson - Blue Ash OH
Freddie C. Carter - West Paducah KY
James R. Farmer - Johnston City IL

Assignee:

H.B. Fuller Licensing & Financing, Inc. - St. Paul MN

International Classification:

B29C 4738
B29C 4760
C08L 9106
C08L 9304

US Classification:

524487

Abstract:

A polymeric composition in pellet form comprising a tacky hot melt composition, comprising a) from about 5% by weight to about 90% by weight of a thermoplastic polymer, b) from about 0% by weight to about 65% by weight of a tackifying resin, c) from about 0% to about 50% by weight of a plasticizer, d) up to about 2% by weight of an antioxidant, and a pelletizing aid, wherein the tacky hot melt composition has some minimum amount of tackifier or plasticizer and is a pressure sensitive adhesive having a storage modulus, G', at about 25. degree. C. , of less than about 5. times. 10. sup. 6 dynes/cm. sup. 2, and each pellet has a substantially tack-free surface. This invention further discloses a polymeric composition in pellet form suitable for molding articles. The composition comprises a tacky hot melt composition comprising at least one high molecular weight triblock copolymer of the general configuration A-B-A and a plasticizer and a pelletizing aid. The pelletizing aid substantially surrounds the tacky composition such that the molded articles are substantially free from surface tack.

US Patent:

58695559, Feb 9, 1999

Filed:

Nov 18, 1996

Appl. No.:

8/751828

Inventors:

Eugene R. Simmons - Vadnais Heights MN
Kevin J. Sweeney - Mahtomedi MN
Jeffrey S. Lindquist - Cottage Grove MN
Christopher E. Olson - Blue Ash OH
Freddie C. Carter - West Paducah KY
James R. Farmer - Johnston City IL

Assignee:

H. B. Fuller Licensing & Financing Inc. - St. Paul MN

International Classification:

C08K 520
C08K 501
C08L 9304
C08L 5302

US Classification:

524229

Abstract:

A polymeric composition in pellet form comprising a tacky hot melt composition, comprising a) from about 5% by weight to about 90% by weight of a thermoplastic polymer, b) from about 0% by weight to about 65% by weight of a tackifying resin, c) from about 0% to about 50% by weight of a plasticizer, d) up to about 2% by weight of an antioxidant, and a pelletizing aid, wherein the tacky hot melt composition has some minimum amount of tackifier or plasticizer and is a pressure sensitive adhesive having a storage modulus, G', at about 25. degree. C. , of less than about 5. times. 10. sup. 6 dynes/cm. sup. 2, and each pellet has a substantially tack-free surface. This invention further discloses a polymeric composition in pellet form suitable for molding articles. The composition comprises a tacky hot melt composition comprising at least one high molecular weight triblock copolymer of the general configuration A-B-A and a plasticizer and a pelletizing aid. The pelletizing aid substantially surrounds the tacky composition such that the molded articles are substantially free from surface tack.