摘要:
This invention is directed to an improvement in cosmetic compositions comprised of a cosmetically acceptable carrier and a polymer. The improvement comprises a vinyl acetate-ethylene polymer formed by aqueous emulsion polymerization and having crystalline ethylene segments which imparts a thermal melt temperature, heat of fusion and tensile storage modulus to the polymer. The vinyl acetate-ethylene polymers have: a crystalline melting point (Tm) ranging from 35 to 110° C. measured at a heat rate of 20° C./minute and, a tensile storage modulus of at least 1×105 dynes/cm2 at 115° C. and measured at 6.28 rad/sec.
摘要翻译:本发明涉及由美容上可接受的载体和聚合物组成的化妆品组合物的改进。 该改进包括通过水乳液聚合形成的乙酸乙烯酯 - 乙烯聚合物,并具有将聚合物赋予热熔体温度,熔化热和拉伸储能模量的结晶乙烯部分。 乙酸乙烯酯 - 乙烯聚合物具有:以20℃/分钟的加热速率测量的在35至110℃范围内的结晶熔点(T m m),以及拉伸储存模量 在115℃下至少为1×10 5达因/ cm 2,并以6.28rad / sec测量。
摘要:
The invention relates to an improvement in a process for imparting barrier properties to porous substrates, such as, concrete, masonry products, and wood products. The process comprises the steps of: applying an aqueous based sealing composition comprising a polymeric resin to said porous substrate, evaporating the water and forming a water repellent coating of said polymeric resin on said porous substrate. The improvement comprises: deriving the polymeric resin from an aqueous based polymer emulsion comprising a polymer comprised of emulsion polymerized units of vinyl acetate and ethylene, preferably with a carboxylic acid monomer, the polymer containing amorphous and crystalline ethylene segments and having: (a) a crystalline melting point (Tm) ranging from 35 to 110° C., preferably 50 to 100° C.; measured at a heat rate of 20° C./minute; and, (b) a tensile storage modulus of at least 1×105 dynes/cm2 at 115° C. measured at 6.28 rad/sec.
摘要:
This invention relates to an improved process for providing water repellency and stain resistance to a masonry surface wherein an aqueous based water repellant polymeric coating is applied thereto and the water removed leaving a water repellent polymeric film adhered to the masonry surface. The improvement in the process resides in the use of an aqueous emulsion of a semi-crystalline ethylene-vinyl acetate polymer formed by emulsion polymerization wherein the polymer has: (a) a crystalline melting point ranging from 35 to 110° C. measured at a heat rate of 20° C. per minute; and, (b) a tensile storage modulus of at least 1×105 dynes/cm2 at a temperature of 115° C. and measured at 6.28 rad/sec.