水性防水コーティング

Japanese Patent JP7171443

B2

Described herein is a multi-phase polymer binder comprising:an aqueous polymer dispersion present in an amount of 65 wt% to 100 wt%;a hydrophobic emulsion from 0 wt% to 25 wt%; anda surfactant from 0 wt% to 10 wt%;wherein the polymer binder, when dried, provides a water uptake of less than 5 g/m²/20 min in accordance with Cobb test, a seal strength of at least 200 Newton/meter (N/m) as measured at 25 °C and 90 °C, and block resistance of 3 to 5 when measured at 50° C and 60 psi for 24 hours in accordance with the method described in the description, andthe aqueous polymer dispersion comprises an acid-rich copolymer present in an amount of 5 wt% to 60 wt%; and an acid-free copolymer present in an amount of 40 wt% to 95 wt%, wherein the acid-rich copolymer comprises carboxylic acid functional monomers in an amount of 5 wt% to 25 wt%; styrene in an amount of up to 70 wt%; and (meth)acrylate monomers in an amount of 10 wt% to 90 wt%, andthe acid-free copolymer comprises styrene in an amount of up to 50 wt%; and (meth)acrylate monomers in an amount of 50 wt% to less than 100 wt%, andwherein the aqueous polymer dispersion has a solids content (NV %) from 40.3 to 47.9%.

Gary A. Dieter
Frank Reinhold
Amirpuyan Sardashti
Andrew Sicharan

JP2018563034A

November 15, 2022

June 02, 2017

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BASF SE

C09D133/06; C08F212/08; C08F220/04; C09D5/02; C09D7/63; C09D7/65; C09D125/08; C09D133/02; C09D191/06

JP2015147874A
JP2001106861A
JP4249566A
JP1180651A
JP11124533A
JP2006342221A
JP2008501840A
JP2011522106A

US20150218426
US20110308751
US20070232743
CN104277172A

Einzel Felix-Reinhard
Taku Morita
Junichi Maekawa
Hideo Nagashima
Ueshima class

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