Abstract:
The present invention is directed to a unique solution for promoting adhesion of substrates to adhesives containing a prepolymer having isocyanate, silane or both functional groups. The solution comprises a composition comprising: a) from about 0.05 to about 10.0 parts by weight of a hydrolysate of one or more of alkoxysilyl amines; b) from about 0.05 to about 1.0 parts by weight of one of more alkoxylated alcohols, alkoxysilyl terminated alkoxylated alcohols, fatly acids or fatty acid esters; and, c) from about 80 to about 99.9 parts by weight of water: wherein the composition contains 100 parts by weight and the composition exhibits a pH of about 9 to about 12.
Abstract:
Reversibly and irreversibly-linking amino-polysiloxanes, methods of making such amino-polysiloxanes, and systems and methods of using such amino-polysiloxanes for the containment and/or remediation of a release and/or spill of a crude oil, a petroleum product and/or a chemical is described. Gels and/or emulsions formed from the combination and/or contacting of such an amino-polysiloxane with these materials can be used to recover these oils or chemicals while allowing the amino-polysiloxane to be recovered and reused to clean up or contain additional materials. Such amino-polysiloxanes can be used as well for the selective uptake of one component of liquid mixtures when such mixtures contain more and less lipophilic components. Methods of making and using adhesive and sealants containing such amino-polysiloxanes are described. The adhesive and sealants can be used in a variety of applications to adhere and/or seal various materials including plastics, metals, glass, ceramics, paper, paper products, wood, and wood products.
Abstract:
Disclosed is a curable silicone composition for preparing release layers and pressure sensitive adhesives, and to substrates bearing a layer of the cured composition. More specifically, this invention relates to a silicone composition, curable in the absence of both catalysts and actinic radiation comprising a cyclic anhydride copolymer and an amine-terminated polysiloxane.
Abstract:
Disclosed is an adhesive characterized by containing a ladder polysilsesquioxane having a repeating unit represented by formula (I) in a molecule. The adhesive contains a specific ladder polysilsesquioxane, and exhibits good adhesion to metals or synthetic resins. (In the formula, A represents a single bond or a linking group; R1 represents a hydrogen atom or the like; X0 represents a halogen atom, a group represented by the following formula: OG (wherein G represents a protecting group of a hydroxy group) or a cyano group; R2 represents an optionally substituted phenyl group, a C1-20 alkyl group which may have a substituent (excluding a halogen atom, a group represented by the formula: OG and a cyano group) or the like; and l, m and n each represents 0 or a natural number, provided that l and n are not 0 at the same time.)
Abstract translation:公开了一种粘合剂,其特征在于在分子中含有具有由式(I)表示的重复单元的梯状聚倍半硅氧烷。 粘合剂含有特定的梯形倍半硅氧烷,并且对金属或合成树脂表现出良好的粘附性。 (式中,A表示单键或连结基,R 1表示氢原子等; X 0表示卤素原子,由下式表示的基团:OG(式中,G表示羟基的保护基) )或氰基; R 2表示可以具有取代基的苯基,可具有取代基的碳原子数为1〜20的烷基(不包括卤素原子,由式:OG及氰基表示的基团)等; l ,m和n各自表示0或自然数,条件是l和n不同时为0)
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.
Abstract:
A fixing material includes a silane compound polymer as the main component, the silane compound polymer being produced by condensing a silane compound mixture that includes at least one silane compound (1) shown by the following formula (1): R1Si(OR2)p(X1)3-p (wherein R1 represents a group including an ester structure or a cyanoalkyl group, R2 represents an alkyl group having 1 to 6 carbon atoms or the like, X1 represents a halogen atom, and p is an integer from 0 to 3), and at least one silane compound (2) shown by the following formula (2): Si(OR3)q(X2)4-q (wherein R3 represents an alkyl group having 1 to 6 carbon atoms, X2 represents a halogen atom, and q is an integer from 0 to 4). A sealed optical device includes an optical device that is sealed with a cured product of the fixing material. The fixing material produces a cured product that exhibits high hardness, excellent transparency and heat resistance, and rarely undergoes coloration even when subjected to high-energy light or heat for a long time.
Abstract:
Compositions and methods for treating metal substrates and/or bonding metal substrates to polymeric materials, such as rubber, are provided. The compositions include at least one substantially hydrolyzed amino silane and at least one substantially hydrolyzed sulfur-containing silane. Optionally, the compositions include a nano-size particulate material. The compositions provide coatings on metal substrates for protecting the metal from corrosion and for adhering rubber-like polymeric compositions to the metal with polymer-to-metal vulcanization conditions less dependent on the coating thickness, and with use of less coating materials.
Abstract:
The present invention provides an acrylate/silicone pressure-sensitive adhesive tape having improved adhesion to painted surfaces and low temperature performance. The pressure-sensitive adhesive tape comprises:(a) a pressure-sensitive adhesive layer comprising a polymerized pressure sensitive adhesive composition wherein said pressure sensitive adhesive composition comprises:(I) about 25 to about 99 weight percent of polymer of the formula ##STR1## wherein: X, Y, D, R, R.sup.1, R.sup.2, R.sup.3, R.sup.4, and n are defined in the specification;(II) about 1 to about 75 weight percent free radically polymerizable vinyl monomer which is capable of copolymerizing with the polymer wherein said free radically polymerizable monomer comprises:(i) about 5 to about 100 parts by weight of an acidic monomer selected from the group consisting of methacrylic acid, acrylic acid, and mixtures thereof;(ii) about 0 to about 95 parts by weight of an acrylate monomer selected from the group consisting of esters of acrylic acid comprising 4 to 21 carbon atoms and esters of methacrylic acid comprising 5 to 21 carbon atoms and mixtures thereof; based upon 100 parts total by weight of said free radically polymerizable monomer; wherein the weight percentages set forth in elements,(I) and (II) are based upon the total weight of the polymer of element (I) plus the monomer of element (II); and(III) a sufficient amount of a silicate MQ tackifying resin to impart a degree of adhesive tack to the cured composition at the use temperature; and(b) a foam layer which is coated on at least one side with the adhesive layer.The present invention also provides the pressure sensitive adhesive composition and pressure sensitive adhesive.
Abstract:
A photocurable silicone composition easy to manufacture, free of variations in adhesion and effective as a potting material or the like is provided. The composition is prepared by adding a silanol terminated organosiloxane to an amino group-containing organodialkoxysilane, then reacting the resulting amino group-containing organopolysiloxane with a vinyl group-containing isocyanate, acrylic anhydride, methacrylic anhydride, acrylic halide or methacrylic halide and combining the resulting photocurable organopolysiloxane with a photopolymerization catalyst.
Abstract:
The present invention provides a radiation curable vinyl-silicone pressure-sensitive adhesive composition which combines the advantages of silicone and acrylate pressure-sensitive adhesives and which does not experience gross phase separation problems. The composition comprises at least about 20 weight percent of a certain telechelic silicone polymer, about 0.5 to about 80 weight percent of monofunctional free-radically polymerizable vinyl monomer copolymerizable with the silicone polymer, and a sufficient amount of a silicate MQ tackifying resin to impart a degree of adhesive tack to the cured composition at the use temperature, wherein the weight percentages of the silicone polymer and the monomer are based upon the total weight of the silicone polymer and monomer.