Byk-Chemie Gmbh

Wesley A Huff

René Nagelsdiek

Daniela Leutfeld

Alan Lawrence Steinmetz

George Mark Zody

Dominika Bernert

Justin Adams

George M Zody

Alan L Steinmetz

The invention relates to polymer comprising structural units according to formula (I), R&#x2014;X&#x2014;(C&#x2550;O)&#x2014;NH&#x2014;R&#x2014;NH&#x2014;(C&#x2550;O)&#x2014;O&#x2014;POA-R&#x2014;(O&#x2014;POA-R)wherein Rrepresents an organic group terminated by a hydrocarbyl group having 6 to 50 carbon atoms, X represents O or N&#x2014;R, wherein R5 represents a hydrogen atom or a hydrocarbyl group having 1 to 30 carbon atoms, Rrepresents an aliphatic hydrocarbyl group having 4 to 40 carbon atoms, POA represents a polyoxyalkylene group, R3 represents an organic group having 2 to 40 carbon atoms, n is an integer from 1 to 6, Ris independently selected from &#x2014;(C&#x2550;O)&#x2014;NH&#x2014;R&#x2014;NH&#x2014;(C&#x2550;O)&#x2014;X&#x2014;R, &#x2014;(C&#x2550;O)&#x2014;NH&#x2014;R, &#x2014;R, wherein Rrepresents a hydrogen atom or an aliphatic or aromatic group having 1 to 24 carbon atoms, and wherein the polymer has an average of at least 1.8 end groups Rper molecule, a number average molecular weight in the range of 2000 to 100000 Daltons, a polydispersity in the range of 1.0 to 5.0, wherein the quotient of the polydispersity divided by (n+1) is less than 1.0, with the proviso that the polymer is not the reaction product of a) the mono-adduct of isophorone diisocyanate with 1-dodecanol and b) a polyether based on glycerol and a mixture of ethylene oxide and propylene oxide with an OH number of 18 mg KOH/g.

Polymer suitable as a thickener

The invention relates to polymer comprising structural units according to formula (I), R&#x2014;X&#x2014;(C&#x2550;O)&#x2014;NH&#x2014;R&#x2014;NH&#x2014;(C&#x2550;O)&#x2014;O&#x2014;POA-R&#x2014;(O&#x2014;POA-R)wherein Rrepresents an organic group terminated by a hydrocarbyl group having 6 to 50 carbon atoms, X represents O or N&#x2014;R, wherein Rrepresents a hydrogen atom or a hydrocarbyl group having 1 to 30 carbon atoms, Rrepresents a hydrocarbyl group comprising an aromatic group and having 6 to 40 carbon atoms, POA represents a polyoxyalkylene group, Rrepresents an organic group having 2 to 40 carbon atoms, n is an integer from 1 to 6, Ris independently selected from &#x2014;(C&#x2550;O)&#x2014;NH&#x2014;R&#x2014;NH&#x2014;(C&#x2550;O)&#x2014;NH&#x2014;R, &#x2014;R, wherein Rrepresents a hydrogen atom or an aliphatic or aromatic group having 1 to 24 carbon atoms, and wherein the polymer has an average of at least 1.8 end groups Rper molecule, a number average molecular weight in the range of 2000 to 100000 Daltons, and a polydispersity in the range of 1.0 to 5.0, wherein the quotient of the polydispersity divided by (n+1) is less than 1.0.

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Wesel, Germany

Wesley A Huff