Optical resin composition
    12.
    发明授权
    Optical resin composition 失效
    光学树脂组合物

    公开(公告)号:US5917006A

    公开(公告)日:1999-06-29

    申请号:US8222

    申请日:1998-01-16

    IPC分类号: C08G75/04 G02B1/04 C08G75/00

    CPC分类号: C08G75/045 G02B1/04

    摘要: Describes a polymerizable organic composition comprising an aromatic monomer having at least two vinyl groups, e.g., divinyl benzene, a polythiol monomer having at least two thiol groups, e.g., pentaerythritol tetrakis(2-mercaptoacetate), and an anhydride monomer having at least one ethylenically unsaturated group, e.g., methacrylic anhydride. Polymerizable compositions according to the present invention, may optionally further comprise a polymerizable comonomer having at least two (meth)acryloyl groups, e.g., pentaerythritol tetrakis (acrylate). Polymerizates prepared from polymerizable organic compositions of the present invention have a refractive index of at least 1.57 and an Abbe number of at least 33. Also described are photochromic articles prepared from such compositions.

    摘要翻译: 描述了包含具有至少两个乙烯基的芳族单体的可聚合有机组合物,例如二乙烯基苯,具有至少两个硫醇基的多硫醇单体,例如季戊四醇四(2-巯基乙酸酯)和具有至少一个烯属的 不饱和基团,例如甲基丙烯酸酐。 根据本发明的可聚合组合物可任选地进一步包含具有至少两个(甲基)丙烯酰基的可聚合共聚单体,例如季戊四醇四(丙烯酸酯)。 由本发明的可聚合有机组合物制备的聚合物具有至少1.57的折射率和至少为33的阿贝数。还描述了由这些组合物制备的光致变色制品。

    Stable particulate dispersions
    13.
    发明授权
    Stable particulate dispersions 失效
    稳定的颗粒分散体

    公开(公告)号:US5691392A

    公开(公告)日:1997-11-25

    申请号:US795736

    申请日:1997-02-05

    IPC分类号: C08J9/00 C08G18/00

    摘要: A composition comprising a particulate dispersion of from 50% to 98.9% by weight of a siloxane-polyoxyalkylene copolymer surfactant, from 1% to 49.9% by weight of a nonionic organic surfactant other than the siloxane-polyoxyalkylene copolymer surfactant and from 0.1% to 25% by weight, based on the total weight of the composition, of a particulate material having a particle size of less than 20 microns, is described. A method of preparing such a composition, and polyurethane and polyisocyanurate foams containing such a composition are also described. The nonionic organic surfactant is preferably an ethoxylated nonylphenol. The particulate material is preferably a hydrophobic precipitated silica. The composition of the invention is useful as an additive in the preparation of rigid polyurethane and polyisocyanurate foams.

    摘要翻译: 一种组合物,其包含50至98.9重量%的硅氧烷 - 聚氧化烯共聚物表面活性剂,1重量%至49.9重量%的除硅氧烷 - 聚氧化烯共聚物表面活性剂之外的非离子有机表面活性剂和0.1至25重量% 描述了基于组合物总重量的重量%的粒径小于20微米的颗粒材料。 还描述了制备这种组合物的方法,以及含有这种组合物的聚氨酯和聚异氰脲酸酯泡沫。 非离子有机表面活性剂优选为乙氧基化壬基酚。 颗粒材料优选为疏水性沉淀二氧化硅。 本发明的组合物可用作制备硬质聚氨酯和聚异氰脲酸酯泡沫体中的添加剂。

    Post-Processing of Polylactic Acid Article
    14.
    发明申请
    Post-Processing of Polylactic Acid Article 审中-公开
    聚乳酸后处理

    公开(公告)号:US20090036639A1

    公开(公告)日:2009-02-05

    申请号:US12181415

    申请日:2008-07-29

    IPC分类号: C08G63/08

    摘要: Methods are provided for making a polylactic acid article. The methods may include the steps of providing an article comprising polylactic acid; supporting the article using a carrier support system; and curing the article with heat. The step of curing the article is effective to improve one or more properties of the article. Articles comprising polylactic acid also are provided having improved properties. Methods also are provided for preparing a beverage including the steps of providing a pod comprising polylactic acid, wherein the pod has been cured with heat while being supported by a carrier support system; placing a beverage material in the pod; placing a hot liquid into the pod; brewing the beverage material and hot liquid in the pod to create a beverage; and removing the beverage from the pod.

    摘要翻译: 提供制备聚乳酸制品的方法。 所述方法可以包括提供包含聚乳酸的制品的步骤; 使用运营商支持系统支持文章; 并用热量固化物品。 固化该制品的步骤对于改善制品的一种或多种性质是有效的。 提供包含聚乳酸的制品具有改进的性能。 提供了用于制备饮料的方法,包括以下步骤:提供包含聚乳酸的荚,其中所述荚已经被热固化,同时由载体支撑系统支撑; 将饮料材料放入荚中; 将热液放入荚内; 在饮料袋中冲泡饮料和热液体以形成饮料; 以及从所述荚中去除所述饮料。

    Surfactants for incorporating silica aerogel in polyurethane foams
    15.
    发明授权
    Surfactants for incorporating silica aerogel in polyurethane foams 失效
    用于将二氧化硅气凝胶掺入聚氨酯泡沫中的表面活性剂

    公开(公告)号:US6121336A

    公开(公告)日:2000-09-19

    申请号:US267723

    申请日:1994-06-28

    IPC分类号: C08J9/00

    摘要: Polyurethane foams prepared using polysiloxane/polyoxyalkylene surfactants, preferably blended with a viscosity modifying agent, particularly in combination with particulate silica, especially silica aerogel, exhibit improved thermal insulating capacity, as measured by K-factor, and improved closed cell content, without increasing the density of the polyurethane foam.

    摘要翻译: 使用聚硅氧烷/聚氧化烯表面活性剂制备的聚氨酯泡沫,优选与粘度改进剂共混,特别是与颗粒二氧化硅,特别是二氧化硅气凝胶组合,表现出改善的隔热能力,如通过K因子测量的,并且改善闭孔含量,而不增加 聚氨酯泡沫的密度。

    Partially polymerized mixture of diethylene glycol (allyl carbonate)
compounds
    17.
    发明授权
    Partially polymerized mixture of diethylene glycol (allyl carbonate) compounds 失效
    二甘醇(碳酸烯丙酯)化合物的部分聚合混合物

    公开(公告)号:US5952441A

    公开(公告)日:1999-09-14

    申请号:US661

    申请日:1997-12-30

    IPC分类号: C08L31/00 C08F18/24

    CPC分类号: C08F18/24

    摘要: A polymerizable, liquid, substantially gel-free composition comprising a partially polymerized mixture of ethylenically unsaturated compounds wherein: (a) the mixture of ethylenically unsaturated compounds which was partially polymerized comprised a mixture of diethylene glycol (allyl carbonate) compounds each represented by Formula I: ##STR1## in which n is a positive integer, m is a positive integer, and the diethylene glycol (allyl carbonate) compound for which the value of n is 1 constituted from 25 to 75 area percent of the mixture of diethylene glycol (allyl carbonate) compounds; and (b) the ethylenic double bond utilization of the polymerizable, liquid, substantially gel-free composition is at least 3 percent. The polymerizable, liquid, substantially gel-free composition exhibits low shrinkage in the mold when polymerized.

    摘要翻译: 一种可聚合的,液体的,基本上不含凝胶的组合物,其包含烯属不饱和化合物的部分聚合的混合物,其中:(a)部分聚合的烯键式不饱和化合物的混合物包括由式I表示的二甘醇(碳酸烯丙酯) :其中n为正整数,m为正整数,n为1的二甘醇(碳酸烯丙酯)化合物由二甘醇(碳酸烯丙酯)化合物的混合物的25〜75面积%构成 ; 和(b)可聚合的,液体的,基本上不含凝胶的组合物的烯属双键利用率为至少3%。 可聚合的,液体的,基本上不含凝胶的组合物在聚合时在模具中表现出低的收缩率。

    Method of preparing an optical polymerizate
    18.
    发明授权
    Method of preparing an optical polymerizate 失效
    光聚合物的制备方法

    公开(公告)号:US5932681A

    公开(公告)日:1999-08-03

    申请号:US37106

    申请日:1998-03-09

    IPC分类号: C08G18/38 C08G18/42

    CPC分类号: C08G18/3876

    摘要: Describes a method of preparing a polymerizate by polymerizing a two-component organic composition comprising: a first component containing a polyfunctional reactant having two or more functional groups selected from isocyanate, isothiocyanate and combinations of isocyanate and isothiocyanate groups; and a second component containing a polythiol represented by the following general formula I, ##STR1## wherein R.sub.1 and R.sub.2 are each selected from the group consisting of straight or branched chain alkylene, e.g., methylene and ethylene, cyclic alkylene, phenylene and C.sub.1 -C.sub.9 alkyl substituted phenylene. The second component may also optionally contain a reactive hydrogen compound that is different than the polythiol of general formula I. Polymerizates prepared according to the present invention are useful as ophthalmic lenses and have a refractive index of at least 1.57, an Abbe number of at least 33 and an initial Barcol hardness of at least 1. Also described are photochromic articles prepared from such polymerizates.

    摘要翻译: 描述了通过聚合双组分有机组合物制备聚合物的方法,包括:含有具有两个或多个选自异氰酸酯,异硫氰酸酯和异氰酸酯和异硫氰酸酯基团的组合的多官能反应物的第一组分; 和含有由以下通式I表示的多硫醇的第二组分,其中R 1和R 2各自选自直链或支链亚烷基,例如亚甲基和亚乙基,环状亚烷基,亚苯基和C 1 -C 9烷基取代的亚苯基 。 第二组分还可任选地含有与通式I的多硫醇不同的反应性氢化合物。根据本发明制备的聚合物可用作眼科镜片,折射率至少为1.57,阿贝数至少为 33,初始的Barcol硬度至少为1.还描述了由这种聚合物制备的光致变色制品。

    Silica aerogel produced under subcritical conditions
    19.
    发明授权
    Silica aerogel produced under subcritical conditions 失效
    在亚临界条件下生产的二氧化硅气凝胶

    公开(公告)号:US5746992A

    公开(公告)日:1998-05-05

    申请号:US539461

    申请日:1995-10-05

    IPC分类号: C01B33/158

    CPC分类号: C01B33/1585

    摘要: Liquid comprising from 93 to 100 percent by weight alcohol is removed from silica alcogel at subcritical temperature to produce silica aerogel. The silica aerogel produced by the method of the present invention not only has high porosity, but in most instances it also has a narrow distribution of small pore sizes. The silica aerogel is preferably reduced in size so as to form particulate silica aerogel.

    摘要翻译: 在亚临界温度下从二氧化硅凝胶上除去包含93-100重量%醇的液体,生成二氧化硅气凝胶。 通过本发明的方法制备的二氧化硅气凝胶不仅具有高孔隙率,而且在大多数情况下也具有狭窄的小孔径分布。 二氧化硅气凝胶的尺寸优选减小以形成颗粒状二氧化硅气凝胶。

    One-component optical resin composition
    20.
    发明授权
    One-component optical resin composition 失效
    单组分光学树脂组合物

    公开(公告)号:US5942158A

    公开(公告)日:1999-08-24

    申请号:US37107

    申请日:1998-03-09

    摘要: Described is a polymerizable organic composition comprising at least one capped polyisocyanate having nonfugitive capping groups, e.g., a 1H-azole, a polythiol having two or more thiol groups, and optionally a reactive hydrogen compound selected from polyols, compounds having both hydroxy and thiol groups, and mixtures thereof. A polymerizate, having a thickness of at least 0.5 millimeters, e.g., an optical lens, obtained from the composition of the present invention has an initial Barcol hardness of at least 1, a refractive index of at least 1.57 and an Abbe number of at least 33. Also described are photochromic articles prepared from such polymerizates.

    摘要翻译: 描述了包含至少一种具有非挥发性封端基团的封端多异氰酸酯的可聚合有机组合物,例如1H-唑,具有两个或更多个硫醇基团的多硫醇,以及任选的选自多元醇的反应性氢化合物,具有羟基和巯基的化合物 ,及其混合物。 具有至少0.5毫米厚度的聚合物,例如由本发明组合物获得的光学透镜,其初始Barcol硬度至少为1,折射率至少为1.57,阿贝数至少为 还描述了由这样的聚合物制备的光致变色制品。