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:
Dec. 07, 2021
Filed:
Jan. 16, 2017
Ddp Specialty Electronic Materials Us, Llc., Wilmington, DE (US);
Xiaomei Song, Shanghai, CN;
Dakai Ren, Midland, MI (US);
Hongyu Chen, Zhanjiang, CN;
Jeffrey M. Alcott, Midland, MI (US);
Mark A. Barger, Midland, MI (US);
Yi Zhang, Shanghai, CN;
Ernest J. Herst, Midland, MI (US);
DDP SPECIALTY ELECTRONIC MATERIALS US, LLC, Wilmington, DE (US);
Abstract
An article contains a polymeric foam board having a primary surface and an intumescent coating on a primary surface of the polymeric foam board, the intumescent coating containing a polymeric binder, expandable graphite particles, a phosphorous material and a boron-containing compound and wherein the article is free of an object that is in contact with the intumescent coating and that sandwiches the intumescent coating between it and the polymeric foam board and wherein the intumescent coating has a tensile elongation of at least 50 percent and less than 100 percent at 23 degrees Celsius as measured according to ISO 37, has a storage modulus of less than 1×10Pascals at 250 degrees Celsius, is halogen-free, free of sodium silicate, free of polyurea elastomer, and free of formals of pentaerythritol and dipentaerythritol.