The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jan. 07, 1997
Filed:
May. 04, 1995
Louis R Dragner, Rock Hill, SC (US);
John P Farewell, Rock Hill, SC (US);
Sequa Chemicals, Inc., Chester, SC (US);
Abstract
This invention provides a process for surface sizing paper or paperboard involving applying a surface sizing composition containing a mixture of starch and a surfactantless stable vinyl polymer microemulsion, followed by drying. The vinyl polymer microemulsion is prepared by emulsion polymerization of a styrene or styrene containing organic group with a C.sub.2 -C.sub.8 acrylic or methacrylic ester utilizing as the sole emulsifying agent a low molecular weight alkali soluble, acid containing copolymer.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile