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:
Aug. 29, 1978
Filed:
Jul. 17, 1975
Applicant:
Inventors:
Toshiki Ikeda, Shiga, JP;
Yoshitsugu Beppu, Shiga, JP;
Assignee:
Sekisui Kaseihin Kogyo Kabushiki Kaisha, Nara, JP;
Primary Examiner:
Int. Cl.
CPC ...
C08J / ;
U.S. Cl.
CPC ...
521 57 ; 521 84 ; 521 89 ; 521 97 ;
Abstract
Expandable ethylenically unsaturated polymer particle compositions containing an expanding agent, said polymer particles having the surfaces thereof coated with a layer of a compound comprising calcium carbonate having a particle size of from 0.02 to 0.2 microns and the surfaces of said calcium carbonate particles having chemically attached thereto organic compounds selected from the group consisting of higher fatty acids, resin acid, lignin sulfonic acid and mixtures thereof.