摘要:
The present invention is a composition comprising a stable aqueous dispersion of polymer particles and a sorbate ester, which is a liquid at 20 °C and has a molecular weight in the range of 125 to 500 g/mol. The composition of the present invention provides a way to enhance film formation of coatings prepared using relatively high T g latexes without the aid of high volatile organic content (VOC) coalescents.
摘要:
The present invention is a process for converting a phosphonate to a hydroxyalkyl phosphonic acid comprising the step of contacting together water, the phosphonate, and a sulfonated or phosphonated heterogeneous catalyst under conditions sufficient to convert at least 50% of the phosphonate to the hydroxyalkyl phosphonic acid. The process of the present invention provides a way of preparing hydroxyalkyl phosphonic acids safely and economically, without corrosive effects. Examples for said heterogeneous catalysts are sulfonated crosslinked macroreticular ion exchange resins or a sulfonated microporous aluminosilicate minerals. The process is further characterized by producing phosphonates of the following formula:
where R is H or acetyl; and R 1 is C 1 -C 10 -alkyl; and n is 2 to 10.
摘要:
The present invention is a process for converting a phosphonate to a hydroxyalkyl phosphonic acid comprising the step of contacting together water, the phosphonate, and a sulfonated or phosphonated heterogeneous catalyst under conditions sufficient to convert at least 50% of the phosphonate to the hydroxyalkyl phosphonic acid. The process of the present invention provides a way of preparing hydroxyalkyl phosphonic acids safely and economically, without corrosive effects. Examples for said heterogeneous catalysts are sulfonated crosslinked macroreticular ion exchange resins or a sulfonated microporous aluminosilicate minerals. The process is further characterized by producing phosphonates of the following formula: where R is H or acetyl; and R 1 is C 1 -C 10 -alkyl; and n is 2 to 10.
标题翻译:EINEM SORBAMID-KOALESZENZMITTEL EINEM SORBATESTER ODER EINEM SORBAMID-KOALESZENZMITTEL在欧洲BESCHICHTUNGSFORMULIERUNG MIT EINEM SORBATESTER ODER中的REDUZIERUNG VON VERGILBUNG
摘要:
The present invention is a composition comprising a stable aqueous dispersion of polymer particles and a sorbate ester, which is a liquid at 20 °C and has a molecular weight in the range of 125 to 500 g/mol. The composition of the present invention provides a way to enhance film formation of coatings prepared using relatively high T g latexes without the aid of high volatile organic content (VOC) coalescents.