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2. 发明授权

US07138455B2 Acrylic polymer powder, acrylic sol and molding 有权
标题翻译：丙烯酸聚合物粉末，丙烯酸溶胶和成型
公开(公告)号：US07138455B2
公开(公告)日：2006-11-21
申请号：US10759200
申请日：2004-01-20
申请人： Katsuji Miyake , Takao Hoshiba , Toshiyuki Muramatsu
发明人： Katsuji Miyake , Takao Hoshiba , Toshiyuki Muramatsu
IPC分类号： C08L31/02
CPC分类号： C08J3/122 , C08J3/16 , C08J2333/06 , Y10S525/902
摘要： An acrylic polymer powder obtained by coagulating and drying a latex containing acrylic polymer particles, in which acrylic polymer powder, the average particle size of the powder is 5 to 10 μm, the percentage of void is 70% or less, and the integral void volume on voids having a pore diameter of 1 μm or more is 0.9 mL/g or less. Acrylic sol obtained using the powder is excellent in storage stability and fluidity.The storage stability and fluidity of the acrylic sol can further be heightened, or it is possible to give different effects (enhancement of mixing properties of the powder with a plasticizer; lowering of the viscosity of the acrylic sol, enhancement of particle destruction resistance; enhancement of the bleed-out resistance, film uniformity and flexibility of moldings obtained from the acrylic sol, formation of smooth film; etc.), by adjusting the macropore diameter and micropore diameter of the acrylic polymer powder, the ratio between the pore volume of macropores to the pore volume of micropores per gram of the powder or the particle size ratio between the length and breadth of the powder in a specific range; incorporating a water soluble macromolecule in the latex; making a reactive surfactant a constituent of the acrylic polymer particles; or using as the latex a mixed latex of two kinds of latexes containing mutually different acrylic polymer particles.Further, the molding of the invention never generates hydrogen chloride gas when incinerated, which is different from moldings formed from polyvinyl chloride sol.
摘要翻译：将丙烯酸系聚合物粒子的平均粒径为5〜10μm，空隙率为70％以下，通过凝聚干燥含有丙烯酸类聚合物粒子的胶乳得到的丙烯酸系聚合物粉末，在孔径为1μm以上的空隙为0.9mL / g以下。使用该粉末获得的丙烯酸溶胶的储存稳定性和流动性优异。可以进一步提高丙烯酸类溶胶的储存稳定性和流动性，或者可以产生不同的效果（增强粉末与增塑剂的混合性能;降低丙烯酸类溶胶的粘度，提高耐颗粒破坏性;增强通过调整丙烯酸类聚合物粉末的大孔直径和微孔直径，大孔隙孔径之间的比例，通过调节丙烯酸类聚合物粉末的大孔直径和微孔直径，可以获得丙烯酸溶胶得到的防渗性，膜均匀性和柔软性，形成光滑膜等）相对于每克粉末的微孔的孔体积或粉末的长度和宽度之间的粒径比在特定范围内; 在胶乳中掺入水溶性大分子; 使反应性表面活性剂成为丙烯酸类聚合物颗粒的成分; 或者使用包含相互不同的丙烯酸类聚合物颗粒的两种胶乳的混合胶乳作为胶乳。此外，本发明的成型在焚烧时不会产生氯化氢气体，这与由聚氯乙烯溶胶形成的模制品不同。

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