US Patent Issued to Dow Silicones on May 12 for "Solventless pressure sensitive adhesive composition" (Chinese Inventors)

ALEXANDRIA, Va., May 12 -- United States Patent no. 12,624,264, issued on May 12, was assigned to Dow Silicones Corp. (Midland, Mich.).

"Solventless pressure sensitive adhesive composition" was invented by Rongrong Fan (Shanghai), Zhihua Liu (Shanghai), Qing Cao (Shanghai), Xiaocong Xu (Shanghai) and Jiayin Zhu (Shanghai).

According to the abstract* released by the U.S. Patent & Trademark Office: "A process for preparing a solventless pressure sensitive adhesive composition comprising mixing (A) a solid polyorganosilicate resin component with (B) an aliphatically unsaturated polydiorganosiloxane (B-1), a branched polyorganosiloxane (B-2), or a mixture of (B-1) and (B-2), at certain temperatures, followed by cooling. The solventless pressu...