# US 9,434,807 B2 · Carbodiimide-containing compositions and method for the production and use thereof > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 9,434,807 B2 - Document ID: US9434807B2 - Status: Granted - Kind: B2 - Application number: 14/405,337 - Filed: 2013-03-22 - Published: 2015-06-18 - Granted: 2016-09-06 - Earliest claimed: 2012-06-05 - Assignees: Rhein Chemie Rheinau GmbH - Applicants: Rhein Chemie Rheinau GmbH - Inventors: Wilhelm Laufer; Armin Eckert; Martina Hauck - Web page: https://patentgrep.com/patent/US9434807B2 ## CPC - C08G 18/3819: {having nitrogen} - C08G 18/0838: {Manufacture of polymers in the presence of non-reactive compounds (preparation of compositions C08L75/00)} - C08G 18/42: Polycondensates having carboxylic or carbonic ester groups in the main chain - C08G 18/4244: {containing oxygen in the form of ether groups} - C08G 18/664: {with compounds of group C08G18/3203} - C08G 18/6651: {with compounds of group C08G18/3225 or polyamines of C08G18/38} - C08G 71/04: Polyurethanes - C08K 5/29: Compounds containing {one or more} carbon-to-nitrogen double bonds - C08G: MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS - C08K: Use of inorganic or non-macromolecular organic substances as compounding ingredients (paints, inks, varnishes, dyes, polishes, adhesives C09) ## Abstract Carbodiimide containing compositions include diilsocyenates, polyols, and liquid carbodiimide of the formula where R1, R2, R4 and R6 are each independently C3-C6-alkyl, and R3 and R5 are each independently C1-C3-alkyl. ## Claims ### Claim 1 A composition comprising: a polyether ester polyol that is liquid at temperatures of 30° C.-80° C., and/or a polyester polyol that is liquid at temperatures of 30° C.-80° C.; a carbodiimide of the formula (I) that is liquid at room temperature where R1, R2, R4 and R6 are each independently C3-C6-alkyl, and R3 and R6 are each independently C1-C3-alkyl, and a diisocyanate, where a ratio of diisocyanate to polyol is 20-50:100 parts by weight. ### Claim 2 (depends on 1) The composition as claimed in claim 1, wherein the R1 to R6 radicals are the same within the molecule. ### Claim 3 (depends on 2) The composition as claimed in claim 2, wherein the R1 to R6 radicals are isopropyl. ### Claim 4 (depends on 1) The composition as claimed in claim 1, further comprising a mixture of a plurality of carbodiimides of the formula (I). ### Claim 5 (depends on 1) The composition as claimed in claim 1, additionally comprising a catalyst. ### Claim 6 (depends on 5) The composition as claimed in claim 5, additionally comprising a diamine and/or a further short-chain diol having a molar mass less than 200 g/mol. ### Claim 7 (depends on 1) The composition of claim 1, wherein the ratio of diisocyanate to polyol is 25 to 35:100 parts by weight. ### Claim 8 (depends on 1) The composition of claim 1, wherein the polyols have a molecular weight of 1000 to 2000 g/mol, and an OH number of 20 to 150. ### Claim 9 (depends on 8) The composition of claim 8, wherein: the ratio of diisocyanate to polyol is 25:100 to 35:100 parts by weight; the ratio of carbodiimide to polyol is 0.1:100 to 5:100 parts by weight; and the composition additionally comprises, based on the weight of the composition: 0.01 to 1 wt % of a catalyst; and 5 to 30 wt % of a diamine and/or a further short-chain did having a molar mass less than 200 g/mol. ### Claim 10 (depends on 1) A process for preparing the composition as claimed in claim 1, the process comprising charging a vessel with the polyol and stirring or metering the liquid carbodiimide of formula (I) or a mixture of liquid carbodiimides of formula (I) into the polyol. ### Claim 11 (depends on 10) The process for preparing a composition as claimed in claim 10, further comprising stirring the diisocyanate into the composition composed of polyol and carbodiimide of formula (I) at temperatures between 80 and 130° C. ### Claim 12 (depends on 6) A process for preparing a composition as claimed in claim 6, the process comprising premixing the catalyst with the diamine and/or the further short-chain diol having a molar mass less than 200 g/mol to produce a premix, and stirring the premix into a composition composed of the polyol, the carbodiimide of formula (I) and the diisocyanate at temperatures between 40° C. and 100° C. ### Claim 13 A polymer obtained by reaction of: a polyether ester polyol that is liquid at temperatures of 30° C.-80° C., and/or a polyester polyol that is liquid at temperatures of 30° C.-80° C., and a carbodiimide of the formula (I) that is liquid at room temperature where R1, R2, R4 and R6 is each independently C3-C6-alkyl, and R3 and R5 is each independently C1-C3-alkyl, with a diisocyanate at temperatures between 80° C. and 130° C., where a ratio of diisocyanate to polyol is 20-50:100 parts by weight. ### Claim 14 (depends on 13) The polymer of claim 13, wherein the ratio of diisocyanate to polyol is 25 to 35:100 parts by weight.