Douglas C Harper

US Patent:

20050014886, Jan 20, 2005

Filed:

Jul 18, 2003

Appl. No.:

10/623348

Inventors:

Michael Yanutola - Tega Cay SC, US
Douglas Harper - Columbia SC, US

International Classification:

C08J003/00

US Classification:

524503000

Abstract:

Described are crosslinked film forming polymers, compositions, coatings, and films such as release coatings prepared from the film forming polymers, coated products, and related methods for preparing and using the crosslinked film forming polymers, with preferred embodiments relating to aqueous backsize compositions comprising pre-crosslinked and optionally post-crosslinkable film forming polymer comprising monomeric units derived from monomers comprising multifunctional pre-crosslinking compound containing at least two reactive groups, and monofunctional monomer.

US Patent:

57959323, Aug 18, 1998

Filed:

Mar 7, 1995

Appl. No.:

8/399894

Inventors:

Louis R. Dragner - Rock Hill SC
Douglas W. Harper - Columbia SC
Nolan H. Thompson - Rock Hill SC

Assignee:

Sequa Chemicals, Inc. - Chester SC

International Classification:

C08L 9106

US Classification:

524276

Abstract:

A surface sizing composition is provided for nonwoven substrates comprising a hydrophobic waxy material and a surfactantless vinyl polymer or copolymer emulsion containing as the sole emulsifying agent an alkali soluble, acid containing copolymer.