Fiber coatings with low Young's modulus and high tear strength are realized with coating compositions that include an oligomeric material formed from an isocyanate, a hydroxy acrylate compound and a polyol. The oligomeric material includes a polyether urethane acrylate and a di-adduct compound, where the di-adduct compound is present in an amount of at least 2.35 wt %. The reaction mixture used to form the oligomeric material may include a molar ratio of isocyanate:hydroxy acrylate:polyol of n:m:p, where n may be greater than 3.0, m may be between n−1 and 2n−4, and p may be 2. Young's modulus and tear strength of coatings made from the compositions increase with increasing n. Coatings formed from the present oligomers feature high tear strength for a given Young's modulus.

Provided is a fiber-reinforced molding material containing a thickening substance (A) containing a vinyl ester resin (a1), an unsaturated monomer (a2), a polyisocyanate (a3), and a polymerization initiator (a4) as essential raw materials and carbon fibers (B) with a fiber length of 2.5 mm to 50 mm. The thickening substance (A) satisfies conditions (1) to (3) below as measured with a rheometer. (1) The maximum value of the rate of change in viscosity in a temperature region lower than a temperature Xa indicating the lowest melt viscosity A is 100 Pa.Math.s/° C. to 1,500 Pa.Math.s/° C. (2) The maximum value of the rate of change in viscosity in a temperature region higher than or equal to the temperature Xa is 1,000 Pa.Math.s/° C. to 10,000 Pa.Math.s/° C. (3) The lowest melt viscosity A is 10 Pa.Math.s to 1,000 Pa.Math.s and the temperature Xa is 70 ° C. to 140 ° C.

Provided is a fiber-reinforced molding material containing a thickening substance (A) containing a vinyl ester resin (a1), an unsaturated monomer (a2), a polyisocyanate (a3), and a polymerization initiator (a4) as essential raw materials and carbon fibers (B) with a fiber length of 2.5 mm to 50 mm. The thickening substance (A) satisfies conditions (1) to (3) below as measured with a rheometer. (1) The maximum value of the rate of change in viscosity in a temperature region lower than a temperature Xa indicating the lowest melt viscosity A is 100 Pa.Math.s/° C. to 1,500 Pa.Math.s/° C. (2) The maximum value of the rate of change in viscosity in a temperature region higher than or equal to the temperature Xa is 1,000 Pa.Math.s/° C. to 10,000 Pa.Math.s/° C. (3) The lowest melt viscosity A is 10 Pa.Math.s to 1,000 Pa.Math.s and the temperature Xa is 70 ° C. to 140 ° C.

Disclosed is a nanosilica-containing thermoplastic hot-melt film having excellent bonding strength, which may be inserted between fabrics to adhere them to each other and may be distributed uniformly on the surfaces of both the fabrics without excessively penetrating into one of the fabrics after melting by heat and pressure during no-sew pressing even if the yarn density of the fabrics is high or low or even if the hole diameter of the fabrics is large or small, thereby increasing the bonding strength between the fabrics.

Disclosed is a nanosilica-containing thermoplastic hot-melt film having excellent bonding strength, which may be inserted between fabrics to adhere them to each other and may be distributed uniformly on the surfaces of both the fabrics without excessively penetrating into one of the fabrics after melting by heat and pressure during no-sew pressing even if the yarn density of the fabrics is high or low or even if the hole diameter of the fabrics is large or small, thereby increasing the bonding strength between the fabrics.

Compositions that are curable to polythioether polymers are provided, comprising: a) a dithiol monomer; b) a diene monomer; c) a radical cleaved photoinitiator; d) a peroxide; and e) an amine; where the peroxide and amine together are a peroxide-amine redox initiator. In some embodiments, the amine is a tertiary amine. In some embodiments, the amine is selected from the group consisting of dihydroxyethyl-p-toluidine, N,N-diisopropylethylamine, and N, N, N′, N″, N″-pentamethyl-diethylenetriamine. In some embodiments, the peroxide is selected from the group consisting of di-tert-butyl peroxide, methyl ethyl ketone peroxide, and benzoyl peroxide. In some embodiments, the composition may additionally comprise a polythiol monomer having three or more thiol groups.

Compositions that are curable to polythioether polymers are provided, comprising: a) a dithiol monomer; b) a diene monomer; c) a radical cleaved photoinitiator; d) a peroxide; and e) an amine; where the peroxide and amine together are a peroxide-amine redox initiator. In some embodiments, the amine is a tertiary amine. In some embodiments, the amine is selected from the group consisting of dihydroxyethyl-p-toluidine, N,N-diisopropylethylamine, and N, N, N′, N″, N″-pentamethyl-diethylenetriamine. In some embodiments, the peroxide is selected from the group consisting of di-tert-butyl peroxide, methyl ethyl ketone peroxide, and benzoyl peroxide. In some embodiments, the composition may additionally comprise a polythiol monomer having three or more thiol groups.

Provided are polymer compositions made by a process comprising: (a) providing a first reactive composition containing: (i) a polymerization initiator that is capable, upon a first activation, of forming two or more free radical groups, at least one of which is further activatable by subsequent activation; (ii) one or more ethylenically unsaturated compounds; and (iii) a crosslinker; (b) subjecting the first reactive composition to a first activation step such that the first reactive composition polymerizes therein to form a crosslinked substrate network containing a covalently bound activatable free radical initiator; (c) contacting the crosslinked substrate network with a grafting composition containing one or more ethylenically unsaturated compounds, wherein the contacting is conducted under conditions such that the grafting composition penetrates into the crosslinked substrate network; and (d) activating the covalently bound activatable free radical initiator at one or more selective regions of the crosslinked substrate network such that the grafting composition polymerizes with the crosslinked substrate network at the selective regions.

Provided are polymer compositions made by a process comprising: (a) providing a first reactive composition containing: (i) a polymerization initiator that is capable, upon a first activation, of forming two or more free radical groups, at least one of which is further activatable by subsequent activation; (ii) one or more ethylenically unsaturated compounds; and (iii) a crosslinker; (b) subjecting the first reactive composition to a first activation step such that the first reactive composition polymerizes therein to form a crosslinked substrate network containing a covalently bound activatable free radical initiator; (c) contacting the crosslinked substrate network with a grafting composition containing one or more ethylenically unsaturated compounds, wherein the contacting is conducted under conditions such that the grafting composition penetrates into the crosslinked substrate network; and (d) activating the covalently bound activatable free radical initiator at one or more selective regions of the crosslinked substrate network such that the grafting composition polymerizes with the crosslinked substrate network at the selective regions.

Disclosed is a method of producing a fabric product, the method comprising preparing an upper; preparing a lining fabric; layering a thermoplastic hot-melt film between the upper and the lining fabric for bonding the upper and the lining fabric; bonding a lining fabric to the upper, wherein the thermoplastic hot-melt film consists of the composition selected from the group consisting of thermoplastic polyurethane, ethylene vinyl acetate, polyamide and polyester compositions, wherein the thermoplastic hot-melt film further contains nanosilica, wherein a content of the nanosilica is 0.1 to 5.0 Parts per Hundred Resin (phr) and a size of the nanosilica is less than 100 nm.