Embodiments relate to a hard coat laminated film having a first hard coat, a second hard coat, and a transparent resin film layer, where: the first hard coat is formed from paint which contains predetermined amounts of (A) a multifunctional (meth)acrylate, (B) a water repellent, and (C) a silane coupling agent, and which does not contain inorganic particles; and the second hard coat is formed from paint containing predetermined amounts of (D) a polymerizable compound and (E) inorganic fine particles having an average particle size of 1-300 nm. The (D) polymerizable compound contains: (d1) a multifunctional (meth)acrylate having three or more (meth)acryloyl groups in one molecule; (d2) a compound having two or more secondary thiol groups in one molecule; and optionally, (d3) at least one (meth)acrylate selected from the group consisting of a (meth)acrylate having two (meth)acryloyl groups in one molecule, a (meth)acrylate having one (meth)acryloyl group in one molecule, and a urethane(meth)acrylate.

An example starch-based material for forming a biodegradable component includes a mixture of a starch and an expansion additive. The starch has an amylose content of less than about 70% by weight. The expansion additive enhances the expansion and physical properties of the starch. A method of preparing a starch-based material is also disclosed and an alternate starch-based material for forming a biodegradable component is also disclosed.

The present invention relates to a maleimide resin composition containing (A) one or more selected from the group consisting of a maleimide compound having one or more N-substituted maleimide groups and a derivative thereof; and (B) a polymer having a hydrocarbon chain or a polyether chain in a main chain thereof, wherein the component (A) contains (A1) a maleimide compound having one or more N-substituted maleimide groups and a molecular weight of less than 600 and (A2) a maleimide compound having one or more N-substituted maleimide groups and a molecular weight of 600 or more. The present invention also relates to a prepreg, a laminated board, a resin film, a printed wiring board, and a semiconductor package that are obtained by using the maleimide resin composition.

An optical layered film comprising an A layer formed of a thermoplastic resin A and a B layer formed of a thermoplastic resin B provided on at least one surface of the A layer, wherein a flexural modulus of a film of the thermoplastic resin A having a thickness of 4 mm is 1,900 MPa or more and 3,500 MPa or less, a flexural modulus of a film of the thermoplastic resin B having a thickness of 4 mm is 100 MPa or more and 900 MPa or less, and a tensile break elongation of a film of the thermoplastic resin A having a thickness of 1.5 mm is 100% or more.

The disclosure relates to methods for producing poly(cyclohexadiene) homopolymers (PCHD). The PCHD is formed by polymerizing a 1,3-cyclohexadiene monomer in the presence of a catalyst, in a hydrocarbon solvent, and at a temperature of −100° C. to 120° C. The catalyst is selected from the group consisting of a Bronsted acid, a Lewis acid, and combinations thereof. PCHD produced under these conditions has good solubility in non-polar solvents, and a number average molecular weight of 300 to 5,000 Dalton; a weight average molecular weight of 5,000 to 15,000 Delton; and a polydispersity index of 3.0 to 8.0. The PCHD is useful for producing crosslinked materials having good physical properties. The crosslinked materials can be combined with a rubbery polymer to produce compositions valuable for further downstream uses.

Disclosed herein are copolymers formed by cationic polymerfization of one or more cyclic dienes and a comonomer selected from the group consisting of a monoterpene, a branched styrene, and combinations thereof, in the presence of a catalyst. Random copolymers having repeat units derived from a cyclic conjugated diene, such as 1,3-cyclohexadiene, and a comonomer such as a monoterpene, can be prepared as soluble products in hydrocarbon solvents. The copolymers can be crosslinked with various crosslinking agents to form materials having good oxidative stability and fire retardancy. The uncrosslinked and crosslinked copolymers have useful properties such as a low dissipation factor, low dielectric constants, and a good balance of thermomechanical and electrical properties that make them valuable in electronic applications.

The invention described herein generally pertains to a composition that includes a silyl-terminated polymer having silyl groups linked to a polymer backbone via triazole. The silyl-terminated polymer is a reaction product of a functionalized polymer backbone and a functionalized silane. The polymer backbone includes a first functional group, which may be one of an azide or an alkyne. The functionalized silane includes a second functional group may also be one of an azide or an alkyne, but is also different from the first functional group. The functionalized polymer backbone is reacted with the functionalized silane in the presence of a metal catalyst.

The present invention relates to a composite preform comprising a multistage polymer. The present invention further relates to a method for making a composite preform comprising a fibrous material and a multistage polymer and its use in making composite articles. The present invention also relates to a process for preparing a composite preform comprising a fibrous material and a multistage polymer and its use for producing fibre reinforced impact modified composites.

The invention described herein generally pertains to a composition that includes a silyl-terminated polymer having silyl groups linked to a polymer backbone via triazole. The silyl-terminated polymer is a reaction product of a functionalized polymer backbone and a functionalized silane. The polymer backbone includes a first functional group, which may be one of an azide or an alkyne. The functionalized silane includes a second functional group may also be one of an azide or an alkyne, but is also different from the first functional group. The functionalized polymer backbone is reacted with the functionalized silane in the presence of a metal catalyst.

Provided is a charge transporting composition that gives a charge transporting thin film having high transparency and excellent flatness. Also provided is an organic EL device that exhibits excellent characteristics.

A charge transporting thin film prepared using a composition containing a polythiophene compound, metal oxide nanoparticles, a nonionic fluorine-containing surfactant and an organic solvent has high transparency and excellent flatness, and use of the charge transporting thin film as a hole injection layer allows an organic EL device having excellent characteristics to be obtained.