#crosslinkers

A New Type of Ultra-Soft Thermoplastic Polyurethanes

Title: THERMOPLASTIC POLYURETHANES WITH CRYSTALLINE CHAIN ENDS

 Number/Link: WO2014/070426

Applicant/Assignee: Lubrizol

Publication date: 8-05-2014

“Gist”: Easily processable, plasticizer-free ultra-soft TPU can be produced by incorporating a crystallizing polyolefin chain stopper.

Why it is interesting:It is well known that TPU with a shore hardness below about 65A is hard to produce and process…

PIPA Polyol Made From “Conventional” Polyol

Title: PROCESS FOR THE PREPARATION OF A POLYOL COMPOSITION

 Number/Link: WO2014/037558

Applicant/Assignee: SHELL

Publication date: 13-03-2014

“Gist”: A PIPA polyol is made from TDI,  TELA and a high sec-OH polyol which is added in two stages.

Why it is interesting:PIPA polyols are a class of ‘filled’ polyols containing dispersed polyurethane particles and are often used in flexible foams to…