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:
May. 02, 2017
Filed:
May. 14, 2015
Henkel Ag & Co. Kgaa, Duesseldorf, DE;
Rainer Kohlstrung, Plankstadt, DE;
Takehito Yamada, Heidelberg, DE;
Henkel AG & Co. KGaA, Duesseldorf, DE;
Abstract
The present specification relates to thermally expandable formulations comprising (a) at least one peroxidically crosslinkable binary copolymer comprising at least one monomer unit selected from vinyl acetate, (meth)acrylic acids and derivatives thereof, the binary copolymer having a melt flow index of not more than 3 g/10 min, as determined in accordance with DIN EN ISO 1133 and with a test load of 2.16 kg and a test temperature of 190° C., (b) at least one peroxide, (c) at least one chemical blowing agent, and (d) at least one polymer based on one or more diene monomers, and (e) at least one terpolymer based on at least one first monomer selected from singly or multiply unsaturated hydrocarbons, and on at least one second monomer selected from (meth)acrylic acids and derivatives thereof. The thermally expandable formulations exhibit a high level of persistence during the heating of the material as required for curing/expansion.