摘要:
The invention provides curable adhesives of high tensile sheer strength, which contain an α-silane-terminated polyurethane prepolymer containing low molecular weight polyether or polyester groups in the polymer backbone, and a silane-terminated polyether polymer containing polyether groups of higher molecular weight.
摘要:
The invention provides curable adhesives of high tensile sheer strength, which contain an a-silane-terminated polyurethane prepolymer containing low molecular weight polyether or polyester groups in the polymer backbone, and a silane-terminated polyether polymer containing polyether groups of higher molecular weight.
摘要:
Weather resistant and water repellent surfacing compositions especially useful in roofing applications contain an alkoxysilane-terminated polymer and a reactive silane plasticizer containing a C6-40 hydrocarbon group. The surfacing compositions are of low viscosity and may be used without non-reactive plasticizers or organic solvents.
摘要:
Weather resistant and water repellent surfacing compositions especially useful in roofing applications contain an alkoxysilane-terminated polymer and a reactive silane plasticizer containing a C6-40 hydrocarbon group. The surfacing compositions are of low viscosity and may be used without non-reactive plasticizers or organic solvents.
摘要:
The invention relates to compounds (K) comprising A) 100 parts by weight of a pre-polymer (P) comprising units (E) in the backbone thereof that are selected from polyether and polyester units, wherein the pre-polymer (P) comprises at least one end group of the general formula (1) -L1-(CH2)y—SiR23-x(OR1)x (1), B) 1 to 100 parts by weight of silane (S) of the general formula (2) R4SiR23-Z(OR1)z (2), (G) 0 to 10 parts by weight of a curing catalyst (HK) that accelerates the curing of the compounds (K) in the presence of humidity, wherein L1 represents a divalent linking group selected from —O—, —S—, —(R3)N—, —O—CO—N(R3)—, —N(R3)—CO—O—, —N(R3)—CO—NH—, —NH—CO—N(R3)—, —N(R3)—CO—N(R3) and R1, R2, R3, x, y and z have the meanings cited in claim 1. R4 are hydrocarbon radicals having at least 7 hydrogen atoms. According to the invention, after hardening, the compounds (K) have high shear strength and are used as adhesives (K).
摘要:
Alkoxy-crosslinking one-component moisture curing compositions contain a polymer bearing (alkoxy)(methyl)silylalkyl-terminal groups, and specific silanes as described herein. The compositions exhibit improved shelf life and yet retain other desirable characteristics.
摘要:
The invention relates to a method for sealing surfaces using single-component, moisture-curing coating compositions (C) containing 5 to 75 wt % of one or more silane-terminated polymers (P) having end groups of the formula (I) —O—C(=O) —NH—A—Si (OR1) (I), wherein A stands for a linear or branched alkylene group having 1 to 10 carbon atoms, R1 stands for a linear or branched, possibly halogenated alkyl group having 1 to 10 carbon atoms, R2 stands for a linear or branched, possibly halogenated alkyl group having 1 to 10 carbon atoms, and X is 1, 2, or 3, 1 to 80 wt % of one or more fillers (F), 0.1 to 10 wt % of one or more water catchers (W), 0.01 to 5 wt % of one or more hardening catalysts (K), 0.01 to 10 wt % of one or more adhesion promoters (A), and possibly further substances common in moisture-curing coating compositions, wherein the weight amounts total 100%.
摘要:
The invention relates to a blend (M), comprising A) 100 parts of an alkoxysilylmethyl-terminated polymer (A) with at least one end group of the general formula (1) -L-(CH2)—SiR23-x(OR1) x (1), with L being a double-bond linking group selected from —O—, —S—, —(R3)N—, —O—CO—N(R3)—, —N(R3)—CO—O—, —N(R3)—CO—NH—, —NH—CO—N(R3)—, —N(R3)—CO—N(R3), R1 and R2 are independently hydrocarbon radicals with 1-6 carbon atoms or ω-lkyl-alkyl radicals with a total of 2-20 carbon atoms, R3 is hydrogen, an optionally halogen-substituted cyclic, linear or branched C1 to C18-alkyl or alkenyl radical or a C6- to C18-aryl radical, and x is 2 or 3, B) 0.01 to 10 parts of a curing catalyst (K) that accelerates the curing of the blend (M) in the presence of air humidity, C) 0 to 1000 parts of one or more fillers (F), D) 0 to 50 parts of one or more monomeric silanes (S) as water traps and silane cross-linkers, E) 0 to 200 parts of one or more plasticizers (W) and F) 0 to 50 parts of one or more adhesion promoters (H) and F) optionally other additives, wherein the blend (M) comprises less than 2 parts of one or more compounds with a primary amine function and less than 0.2 parts of one or more catalyst that contains tin.
摘要:
Isocyanate-free foamable mixtures suitable for filling construction voids and for other uses, comprise isocyanate-free, alkoxysilane-terminated prepolymers (A) which have a silane end group of the formula [1], where X and Y are each an oxygen atom, an N—R3 group or a sulfur atom, R1 is an alkyl, cycloalkyl, alkenyl or aryl radical having 1-10 carbon atoms, R2 is an alkyl radical having 1-2 carbon atoms or an ω-oxyalkylalkyl radical having a total of 2-10 carbon atoms, R3 is a hydrogen atom, an alkyl, alkenyl or aryl radical having 1-10 carbon atoms or a —CH2—SiR1z(OR2)3-z group, and z is 0 or 1, with the proviso that at least one of the two groups X and Y is an NH function, and (B) blowing agents.
摘要:
Methods for initializing a storage system over a network are described. A server initialization utility operates on each of several storage processing units. A client initialization utility operates on a client computing device. The client initialization utility and server initialization utility communicate via a network coupled to the client computing device and the storage processing units. The client initialization utility is used to initialize parameters for each storage processing unit via communication with the corresponding server initialization utility. The client initialization utility is further used to discover array and storage processing identification information. The client and server initialization utilities communicate via exchange of UDP broadcast datagrams.