LOW BIREFRINGENT THERMOPLASTIC LENSES AND COMPOSITIONS USEFUL IN PREPARING SUCH LENSES
    71.
    发明申请
    LOW BIREFRINGENT THERMOPLASTIC LENSES AND COMPOSITIONS USEFUL IN PREPARING SUCH LENSES 审中-公开
    低双重热塑性镜片和组合物可用于制作这些镜片

    公开(公告)号:US20100271702A1

    公开(公告)日:2010-10-28

    申请号:US12810030

    申请日:2008-09-18

    IPC分类号: G02B1/11 C08F236/10 B29D11/00

    摘要: A lens-forming thermoplastic composition of matter has a crystallinity, as determined in accord with differential scanning calorimetry of from 0 percent to less than 1 percent when the composition comprises a hydrogenated vinyl aromatic/isoprene block copolymer or a crystallinity, as determined in accord with differential scanning calorimetry of from more than 0 percent to less than 1 percent when the composition comprises a hydrogenated vinyl aromatic/butadiene block copolymer. The composition has a birefringence, measured at a wavelength of 633 nanometers, within a range of from 0 to less than 6×10. Molding a melt of these compositions occurs at temperatures within a range from the hydrogenated block copolymer's glass transition minus 20° C. to the glass transition temperature minus 90° C. The compositions suitably form lenses such as an optical pick-up lens, which may be aspherical or have at least one of an irregular surface configuration, a non-uniform thickness or an irregular and non-uniform cross-section.

    摘要翻译: 当组合物包含氢化乙烯基芳族化合物/异戊二烯嵌段共聚物或结晶度时,物质的透镜形成热塑性组合物具有结晶度,其根据差示扫描量热法测定为0%至小于1%,如根据 当组合物包含氢化乙烯基芳族化合物/丁二烯嵌段共聚物时,差示扫描量热法为大于0%至小于1%。 该组合物在波长为633纳米的范围内具有在0至小于6×10的范围内的双折射率。 成型这些组合物的熔体发生在从氢化嵌段共聚物的玻璃化转变为-20℃到玻璃化转变温度-90℃的范围内的温度下。组合物适当地形成诸如光学拾取透镜的透镜,其可以是 是非球面的或具有不规则表面构型,不均匀厚度或不规则和不均匀横截面中的至少一个。

    AQUEOUS DISPERSION, ITS PRODUCTION METHOD, AND ITS USE
    72.
    发明申请
    AQUEOUS DISPERSION, ITS PRODUCTION METHOD, AND ITS USE 有权
    水质分散体及其生产方法及其应用

    公开(公告)号:US20100137501A1

    公开(公告)日:2010-06-03

    申请号:US12635569

    申请日:2009-12-10

    IPC分类号: C08L67/00

    CPC分类号: C08J3/03 C08J2367/02

    摘要: Aqueous dispersions including at least one thermoplastic resin; at least one dispersing agent; and water; wherein the dispersion has a pH of less than 12 are disclosed along with dispersions including at least one thermoplastic resin; at least one dispersing agent; and water wherein the dispersion has a volume average particle size of less than about 5 μm. Some dispersions include less than about 4 percent by weight of the dispersing agent based on the weight of the thermoplastic resin. Other dispersions include at least one propylene-rich alpha-olefin interpolymer; at least one dispersing agent; and water. Methods of making such dispersions are also described.

    摘要翻译: 包含至少一种热塑性树脂的水性分散体; 至少一种分散剂; 和水; 其中分散体具有小于12的pH与包含至少一种热塑性树脂的分散体一起公开; 至少一种分散剂; 和水,其中分散体的体积平均粒度小于约5μm。 基于热塑性树脂的重量,一些分散体包括小于约4重量%的分散剂。 其它分散体包括至少一种富含丙烯的α-烯烃互聚物; 至少一种分散剂; 和水。 还描述了制备这种分散体的方法。

    Adhesive compositions containing radial block copolymers with butadiene
endblock and articles produced therefrom
    77.
    发明授权
    Adhesive compositions containing radial block copolymers with butadiene endblock and articles produced therefrom 失效
    含有具有丁二烯末端嵌段的径向嵌段共聚物和由其制备的制品的粘合剂组合物

    公开(公告)号:US5372870A

    公开(公告)日:1994-12-13

    申请号:US168952

    申请日:1993-12-17

    摘要: Radial block copolymers characterized by the formulas: (1) (pS-pI).sub.n X and (2) (pS-pI-pB).sub.n X where pS is polystyrene, pI is polyisoprene, pB is butadiene, X is a residue of a multifunctional coupling agent used in the production of the radial block copolymer, and n is a number greater than 2 representative of the number of branches appended to X; hot-melt adhesive compositions constituted of said radial block copolymers, and articles of manufacture produced therefrom. These copolymers possess blocks of high average molecular weight polystyrene (10,000 to 25,000) and an overall average molecular weight (90,000 to 380,000) such that when blended in requisite proportions with a compatible tackifier resin, preferably also a secondary tackifying resin or plasticizing oil, and stabilizer, superior hot-melt adhesive compositions can be formed. The hot-melt adhesive compositions possess, inter alia, superior heat resistance, superior static time to failure with low viscosity, good peel adhesion, good tack, and high ability to bond to a polyethylene or polypropylene substrate at temperatures below that which may damage the substrate.

    摘要翻译: 其特征在于式(1)(pS-pI)nX和(2)(pS-pI-pB)nX的径向嵌段共聚物,其中pS是聚苯乙烯,pI是聚异戊二烯,pB是丁二烯,X是多官能偶联 用于生产径向嵌段共聚物的试剂,n为大于2的数字,代表附着于X的分枝数; 由所述径向嵌段共聚物构成的热熔粘合剂组合物和由其制备的制品。 这些共聚物具有高平均分子量聚苯乙烯(10,000至25,000)和总平均分子量(90,000至380,000)的嵌段,使得当以相容的比例与相容的增粘树脂,优选也可以是二次增粘树脂或增塑油共混时, 可以形成优良的热熔粘合剂组合物。 热熔粘合剂组合物具有优异的耐热性,优异的静态时间与低粘度的破坏,良好的剥离粘合性,良好的粘性,以及在低于可能损坏聚乙烯或聚丙烯基材的温度下结合到聚乙烯或聚丙烯基材上的高能力 基质。

    Disposable articles of manufacture containing
polystyrene-polyisoprene-polystyrene block copolymers
    78.
    发明授权
    Disposable articles of manufacture containing polystyrene-polyisoprene-polystyrene block copolymers 失效
    含有聚苯乙烯 - 聚异戊二烯 - 聚苯乙烯嵌段共聚物的一次性制品

    公开(公告)号:US5266394A

    公开(公告)日:1993-11-30

    申请号:US925385

    申请日:1992-08-04

    摘要: Polystyrene-polyisoprene-polystyrene block copolymers, hot-melt adhesive compositions constituted of polystyrene-polyisoprene-polystyrene block copolymers, and articles of manufacture produced therefrom. These copolymers possess blocks of high average molecular weight polystyrene (12,000 to 20,000) and low overall average molecular weight (60,000 to 110,000) such that when blended in requisite proportions with a compatible tackifier resin, preferably also a secondary tackifying resin or plasticizing oil, and stabilizer, superior hot-melt adhesive compositions can be formed. The hot-melt adhesive compositions possess, inter alia, superior heat resistance, superior static time to failure with low viscosity, good peel adhesion, good tack, and high ability to bond to a polyethylene or polypropylene substrate at temperatures below that which may damage the substrate.

    摘要翻译: 聚苯乙烯 - 聚异戊二烯 - 聚苯乙烯嵌段共聚物,由聚苯乙烯 - 聚异戊二烯 - 聚苯乙烯嵌段共聚物构成的热熔粘合剂组合物及由其生产的制品。 这些共聚物具有高平均分子量聚苯乙烯(12,000至20,000)和低总平均分子量(60,000至110,000)的嵌段,使得当以相容的比例与相容性增粘树脂(优选也可以是二次增粘树脂或增塑油)共混时, 可以形成优良的热熔粘合剂组合物。 热熔粘合剂组合物具有优异的耐热性,优异的静态时间与低粘度的破坏,良好的剥离粘合性,良好的粘性,以及在低于可能损坏聚乙烯或聚丙烯基材的温度下结合到聚乙烯或聚丙烯基材上的高能力 基质。

    Polystyrene-polyisoprene-polystyrene block copolymers, hot melt adhesive
compositions, and articles produced therefrom
    79.
    发明授权
    Polystyrene-polyisoprene-polystyrene block copolymers, hot melt adhesive compositions, and articles produced therefrom 失效
    聚苯乙烯 - 聚异戊二烯 - 聚苯乙烯嵌段共聚物,热熔粘合剂组合物及其制备的制品

    公开(公告)号:US5143968A

    公开(公告)日:1992-09-01

    申请号:US393545

    申请日:1989-08-11

    摘要: Polystyrene-polyisoprene-polystyrene block copolymers, hot-melt adhesive compositions constituted of polystyrene-polyisoprene-polystyrene block copolymers, and articles of manufacture produced therefrom. These copolymers possess blocks of high average molecular weight polystyrene (12,000 to 20,000) and low overall average molecular weight (60,000 to 110,000) such that when blended in requisite proportions with a compatible tackifier resin, preferably also a secondary tackifying resin or plasticizing oil, and stabilizer, superior hot-melt adhesive compositions can be formed. The hot-melt adhesive compositions possess, inter alia, superior heat resistance, superior static time to failure with low viscosity, good peel adhesion, good tack, and high ability to bond to a polyethylene or polypropylene substrate at temperatures below that which may damage the substrate.

    摘要翻译: 聚苯乙烯 - 聚异戊二烯 - 聚苯乙烯嵌段共聚物,由聚苯乙烯 - 聚异戊二烯 - 聚苯乙烯嵌段共聚物构成的热熔粘合剂组合物及由其生产的制品。 这些共聚物具有高平均分子量聚苯乙烯(12,000至20,000)和低总平均分子量(60,000至110,000)的嵌段,使得当以相容的比例与相容性增粘树脂(优选也可以是二次增粘树脂或增塑油)共混时, 可以形成优良的热熔粘合剂组合物。 热熔粘合剂组合物具有优异的耐热性,优异的静态时间与低粘度的破坏,良好的剥离粘合性,良好的粘性,以及在低于可能损坏聚乙烯或聚丙烯基材的温度下结合到聚乙烯或聚丙烯基材上的高能力 基质。