摘要:
A method of making an engagement cover for rollers for use in web conveying, the method comprising: (a) providing a knit fabric comprising a woven base layer having first and second faces and a resilient looped pile protruding from the first face; (b) applying an elastomeric coating composition to the looped pile; and (c) curing the coating composition to leave a deposit of elastomeric polymer on the looped pile to yield the engagement cover.
摘要:
Fluorochemical urethane compounds and coating compositions derived therefrom are described. The compounds and composition may be used in treating substrates, in particular substrates having a hard surfaces such as ceramics or glass, to render them hydrophilic, oleophobic and easy to clean.
摘要:
An adhesive article comprising a fluorothermoplastic film having a major surface; and a pressure sensitive adhesive layer adhered to at least a portion of the first major surface, wherein the pressure sensitive adhesive comprises a silicone polyurea block copolymer and an MQ tackifying resin. Composite articles preparable from the adhesive articles, and methods of making the same are also disclosed.
摘要:
A method for polishing a wafer comprising an aqueous solution having a pH in the range of 6 to 8, wherein the aqueous solution comprises at least one compound selected from the group consisting of a polymethacrylic acid, a polysulfonic acid, and combinations thereof, and wherein the compound is present in the range of 1.5 to 4 percent by weight of the aqueous solution. The wafer polishing solution can be adjusted to control cut rate and selectivity for modifying semiconductor wafers using a fixed abrasive CMP process.
摘要:
A composition comprises a copolymer comprising repeating units derived from at least one co-reactant comprising two or more acrylate groups and repeating units derived from a fluoroacrylate comprising the reaction product of: (a) at least one fluorochemical alcohol represented by the formula: C4F9—X—OH wherein: R=hydrogen or an alkyl group of 1 to 4 carbon atoms, m=2 to 8, Rf=CnF2n+1, n=1 to 5, y 32 0 to 6, and q=1 to 8; (b) at least one unbranched symmetric diisocyanate; and (c) at least one hydroxy-terminated alkyl (meth)acrylate or 2-fluoroacrylate monomer having 2 to about 30 carbon atoms in its alkylene portion; wherein the composition is coatable.
摘要翻译:组合物包含共聚物,其包含衍生自至少一种包含两个或更多个丙烯酸酯基团的共反应物的重复单元和衍生自氟代丙烯酸酯的重复单元,所述重复单元包含以下反应产物:(a)至少一种由下式表示的含氟醇: in-line-formula description =“In-line Formulas”end =“lead”?> C sub> 3 sub> -X-OH <?in-line-formula description 其中:R =氢或1至4个碳原子的烷基,m = 2至8,R f = C 1, n = 2n + 1,n = 1〜5,y = 0〜6,q = 1〜8; (b)至少一种非支化对称二异氰酸酯; 和(c)至少一种羟基封端的(甲基)丙烯酸烷基酯或其亚烷基部分具有2-30个碳原子的2-氟丙烯酸酯单体; 其中所述组合物是可涂覆的。
摘要:
At least two fixable fluid materials are digitally applied adjacent to each other on a surface of a substrate and fixed to provide fixed coatings having different surface energies The first fixed coating has a first average receding contact angle with water, and the second fixed coating has a second average receding contact angle with water, wherein the magnitude of the difference between the first and second average receding contact angle is at least 30 degree. The coated substrates are useful for controlling the flow of fluid.
摘要:
The specification describes new anti-inflammatory steroids having the formula ##SPC1##Wherein R.sup.1 represents a C.sub.1-4 alkyl or halo- C.sub.1-4 alkyl group, R.sup.2 represents a methyl, ethyl, n-propyl or iso-propyl group (an ethyl group being especially preferred), X represents a hydrogen, chlorine or fluorine atom and -- represents a single or double bond.The specification describes processes for the preparation of such compounds as well as pharmaceutical compositions containing these compounds.
摘要:
There is provided an article comprising at least a first surface having a first binder layer selected from at least one of linear resins and resins having low cross link densities, where the first binder layer has a first major surface opposite a second major surface; and a plurality of microspheres at least partially embedded in the first major surface of the first binder layer. For at least a portion of the first major surface, the plurality of micro spheres may cover 30% to 50% of that portion, and the microspheres may be substantially uniformly spaced.
摘要:
A method of making an engagement cover for rollers for use in web conveying, the method comprising: (a) providing a knit fabric comprising a woven base layer having first and second faces and a resilient looped pile protruding from the first face; (b) applying an elastomeric coating composition to the looped pile; and (c) curing the coating composition to leave a deposit of elastomeric polymer on the looped pile to yield the engagement cover.
摘要:
A method for conveying a web using an engagement cover (10) comprising resilient looped pile (16) engagement surface. Also, web conveying roller (12) having an engagement cover thereon.