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. 04, 2022
Filed:
May. 23, 2007
Applicant:
Patrick Delprat, Lescar, FR;
Inventor:
Patrick Delprat, Lescar, FR;
Assignee:
TRINSEO EUROPE GMBH, Horgen, CH;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B32B 27/30 (2006.01); B32B 27/08 (2006.01); B32B 27/18 (2006.01); C08L 33/06 (2006.01);
U.S. Cl.
CPC ...
B32B 27/30 (2013.01); B32B 27/08 (2013.01); B32B 27/18 (2013.01); B32B 27/302 (2013.01); B32B 27/304 (2013.01); B32B 27/308 (2013.01); B32B 2250/24 (2013.01); B32B 2250/40 (2013.01); B32B 2307/558 (2013.01); B32B 2307/584 (2013.01); B32B 2419/00 (2013.01); B32B 2509/00 (2013.01); B32B 2605/00 (2013.01); C08L 33/064 (2013.01); Y10T 428/269 (2015.01);
Abstract
Method used to protect a thermoplastic polymer consisting of superposing a protective layer (I) comprising an acrylic copolymer comprising, by weight (the total making 100%): from 80 to 99.8% of methyl methacrylate (MMA), from 0 to 20% of at least one comonomer that can be copolymerized with MMA by a radicalar method, and from 0.2 to 10% of maleic anhydride or 15% of acrylic and/or methacrylic acid and possibly anhydride groups with a formula: in which Rand Rdenote H or a methyl radical, a layer of at least one thermoplastic polymer (II), all these steps being performed in order by coextrusion, by hot compression or by multi-injection.