Abstract:
A composition including at least one moisture-curable, semi-crystalline (meth)acrylic oligomer represented by the formula: wherein R 1 is independently a C 16 to C 40 alkyl group; R 2 is independently a C 16 to C 40 alkyl group; each R 3 is independently a methyl, ethyl, or isopropyl group; X is a chain transfer agent as defined further below; Y is independently selected to be a methyl, ethyl, or isopropyl group; a, b and c are each independently selected to be an integer of at least 10, and a + b + c ≤ 1500; n ≥ 1; and p is 0, 1, 2, or 3. The oligomer may be used advantageously as a coating, primer or adhesion promoter in construction articles, for example, adhesives, caulks, grouts, pavement markings, paving materials, ceramic tiles, or roofing granules.
Abstract:
Blended release materials including a blend of a fluoro-functional silicone release polymer and a fluoropolymer are described. Exemplary fluoropolymers include fluoroolefin-based polymers and linear fluoropolymers including linear fluoroacryaltes. Articles including such release materials such as release liners, and adhesive articles, including silicone adhesive articles, are also described.
Abstract:
A method of making a release coated article is described comprising: providing a release coating composition comprising at least 50 wt.% of a mixture of ethylenically unsaturated monomers based on the total ethylenically unsaturated components; wherein the mixture comprises monomer(s) with a linear alkyl group with at least 18 carbon atoms, and monomer(s) with a branched alkyl group with 7 to 31 carbon atoms, and crosslinking component(s) comprising at least two ethylenically unsaturated groups. The method comprises applying the release coating to a major surface of a substrate and polymerizing the monomer(s) and crosslinking component(s) of the release coating. The monomer(s) with linear alkyl groups and branched alkyl groups are typically present at a weight ratio such that the release coating is a liquid at 25°C. Also described are release coating compositions and articles.
Abstract:
Described herein is a latex coating composition comprising particles of polymer and articles therefrom, wherein at least 60 % of interpolymerized monomeric units of the polymer are of formula I, wherein R 3 is H or CH 3 , L is an alkylene group comprising 1-4 carbon atoms, R 1 and R 2 are independently selected from an alkyl group comprising 1 to 3 carbon atoms, n is an integer from 11 to 21, and A is a counter anion.
Abstract:
Methods for preparing silicone-containing polymers by essentially adiabatic polymerization methods are disclosed. The polymerization system includes free radically polymerizable monomers. The monomers include ethylenically unsaturated silicone-containing monomers and/or mercapto-functional silicones as well as additional free radically polymerizable monomers. The silicone-containing polymers are useful as adhesives or release materials.
Abstract:
A composition, and article including such composition, wherein the composition includes a silsesquioxane polymer and a free siloxane; wherein the silsesquioxane polymer includes a three- dimensional network of Formula (I): wherein: each R 1 and R 2 is independently a (C1-C4)alkyl; each L 1 and L 2 is independently a single bond, an alkylene, or an alkylene bonded to a group selected from oxy, thio, carbonyl, -NH-, and combinations thereof; each R 3 is independently a linear (C14-C100)alkyl; each R5 is independently a (C1-C30)alkyl, a (C1-C30)fluorinated alkyl, or a (C2- C30)heteroalkyl having at least one oxygen, sulfur, or -NH- group; with the proviso that L 1 , L 2 , and R5 are selected such that each Si atom is directly bonded to an alkylene or an alkyl; m is an integer of at least 2; n is an integer of 0 or above; m + n is an integer of at least 10; each oxygen atom at an asterisk (*) is bonded to another Si atom within the three-dimensional network; and the silsesquioxane polymer is a solid at 25°C.
Abstract:
Disclosed herein are methods that include contacting a skin surface with a first liquid composition; and then contacting the skin surface with a cationic coated article loaded with a second liquid composition, while at least some portion of the first liquid composition remains on the skin surface, wherein one or both of the first liquid composition or the second liquid composition includes acrylate copolymer particles dispersed therein, the acrylate copolymer particles including the reaction product of a reaction mixture, the reaction mixture including monomers, the monomers including from about 5 wt% to about 50 wt% of at least one high Tg monomer where the wt% of the high Tg monomer is with respect to the total weight of the monomers in the reaction mixture; and from about 20 wt% to about 80 wt% of at least one low Tg monomer where the wt% of the low Tg monomer is with respect to the total weight of the monomers in the reaction mixture, wherein the particles have a number average diameter of at least about 100 nm and wherein at least one and only one of the first or the second composition comprises greater than or equal to 60 wt% of at least one alcohol.
Abstract:
Disclosed herein are compositions that include at least about 85 wt% of a hydroalcoholic solution that includes at least about 1 wt% water; and about 30 to about 85 wt% of at least one C1 to C4 alkyl alcohol based on the total weight of the hydroalcoholic solution; and acrylate copolymer particles dispersed in the hydroalcoholic solution, the acrylate copolymers particles being the reaction product of a reaction mixture, the reaction mixture including monomers, the monomers including from about 5 wt% to about 50 wt% of at least one high Tg monomer; and from about 20 w% to about 80 wt% of at least one low Tg monomer where the wt% of the low and high Tg monomers are with respect to the total weight of the monomers in the reaction mixture, wherein the particles have a number average diameter of at least about 100 nm.
Abstract:
An optical article includes an optical element, a low refractive index layer disposed on the optical element having an effective refractive index of 1.3 or less and a polymeric protective layer disposed on the low refractive index layer. The low refractive index layer includes a binder, a plurality of metal oxide particles dispersed in the binder, and a plurality of interconnected voids. The polymeric protective layer does not increase an effective refractive index of the optical article by greater than 10%.
Abstract:
Siloxane-containing reactive compounds contain moisture-curable alkoxy-silane functional end groups. The siloxane-containing reactive compounds may be prepared from siloxane-containing oxamide compounds or amine compounds. Siloxane-containing polymers may be prepared from the reactive compounds by reaction with water. The siloxane-containing polymers may be release materials or adhesives.