Daniel Bruce Corcoran

US Patent:

51528037, Oct 6, 1992

Filed:

Mar 19, 1991

Appl. No.:

7/671624

Inventors:

Dale A. Hangey - Midlothian VA
Paul W. Harris - Richmond VA
Daniel J. Corcoran - Richmond VA
Michael P. Friedberger - Petersburg VA
Charles J. Cole - Chester VA
William A. Archie - Petersburg VA
Roger N. Spitz - New York NY

Assignee:

Allied-Signal Inc. - Morris Township, Morris County NJ

International Classification:

C09B 6700

US Classification:

8618

Abstract:

This invention relates to improved methods and compositions to enhance stain resistance of carpet fiber. The improved methods relate to a continuous aftertreatment for dyed carpet fabric and to two-step processes, either batch-batch, batch-continuous or continuous-continuous. The improved compositions are used in the processes to enhance stain resistance of carpet or carpet fiber and to overcome various prior drawbacks, such as, yellowing, oxidation and durability to cleaning. The sulfonated aromatic condensates are used to enhance stain resistance, and can be combined with fluorocarbon compounds for soil resistance, thiocyanates, and/or salts having divalent cations, such as magnesium sulfate. Also various dispersing agents, buffering acids and sequestering agents are disclosed.

US Patent:

52307085, Jul 27, 1993

Filed:

Jun 1, 1989

Appl. No.:

7/361671

Inventors:

Dale A. Hangey - Midlothian VA
Paul W. Harris - Richmond VA
Daniel J. Corcoran - Richmond VA
Michael P. Friedberger - Petersburg VA
Charles J. Cole - Chester VA
William A. Archie - Petersburg VA
Roger N. Spitz - New York NY

Assignee:

Allied-Signal Inc. - Morris Township, Morris County NJ

International Classification:

D06M 1500
B32B 302
B32B 2734

US Classification:

81156

Abstract:

This invention relates to improved methods and compositions to enhance stain resistance of carpet fiber. The improved methods relate to a continuous aftertreatment for dyed carpet fabric and to two-step processes, either batch-batch, batch-continuous or continuous-continuous. The improved compositions are used in the processes to enhance stain resistance of carpet or carpet fiber and to overcome various prior drawbacks, such as, yellowing, oxidation and durability to cleaning. The sulfonated aromatic condensates are used to enhance stain resistance, and can be combined with fluorocarbon compounds for soil resistance, thiocyanates, and/or salts having divalent cations, such as magnesium sulfate. Also various dispersing agents, buffering acids and sequestering agents are disclosed.

US Patent:

51454874, Sep 8, 1992

Filed:

Jan 6, 1992

Appl. No.:

7/818475

Inventors:

Dale A. Hangey - Midlothian VA
Paul W. Harris - Chester VA
Charles J. Cole - Chester VA
Daniel J. Corcoran - Richmond VA

Assignee:

Allied-Signal Inc. - Morris Township NJ

International Classification:

C09B 6700
D06M 1541
D06M10134

US Classification:

8557

Abstract:

This invention relates to improved methods and compositions to enhance stain resistance of carpet fiber. The improved methods relate to a continuous aftertreatment for dyed carpet fabric and to two-step processes, either batch-batch, batch-continuous or continuous-continuous. The improved compositions are used in the processes to enhance stain resistance of carpet or carpet fiber and to overcome various prior drawbacks, such as, yellowing, oxidation and durability to cleaning. The sulfonated aromatic condensates are used to enhance stain resistance, and can be combined with fluorocarbon compounds for soil resistance, thiocyanates, and/or salts having divalent cations, such as magnesium sulfate. Also various dispersing agents, buffering acids and sequestering agents are disclosed.