Patent ID: 11965092
Assignee: COVESTRO INTELLECTUAL PROPERTY GMBH & CO. KG
Field: Macromolecular chemistry, polymers (Chemistry)
Classification: CPC C | IPC C

Claim 0:
1. A composition comprising:
(a) a polyurethane polymer which is a reaction product of a reaction mixture comprising:
(a1) a polyisocyanate,
(a2) a compound having an isocyanate-reactive group, which comprises a polymer polyol comprising a polyether polyol and/or a polyolefin polyol,
(a3) optionally an emulsifier,
(a4) optionally a solvent, and
(a5) optionally a reactive diluent;
(b) an organic antioxidant in an amount of 0.01 wt % to 2.4 wt %, based on a total weight of solid components of the composition;
(c) a chelating agent, wherein the chelating agent (c) has an amount of 0.04 wt % to 1.8 wt %, based on the total weight of solid components of the composition and is present in the form of one or more of the following: a chelating agent salt and a chelating agent acid, wherein the chelating agent salt is a water-soluble chelating agent salt comprising an ethylenediamine tetraacetate, a tartrate, a citrate, a pyrophosphate, a tripolyphosphate, a hexametaphosphate, a gluconate, or a combination thereof or the chelating agent acid comprises ethylenediamine tetraacetic acid, nitrilotriacetic acid, tartaric acid, citric acid, pyrophosphoric acid, gluconic acid, or a combination thereof;
(d) water;
(e) optionally a stabilizer;
(f) optionally a crosslinking agent; and
(g) optionally an additive.