A reinforcement material includes a resin layer and a restraining layer. The resin layer contains a resin component and a foaming agent, and serves as a reinforcement layer for reinforcing an object. The restraining layer is disposed on the resin layer. The reinforcement layer contains a matrix resin obtained by curing the resin component and a plurality of cells generated by foaming the foaming agent. A ratio of the total area of the plurality of cells in a cross section of the reinforcement layer is 83% or more, and an elastic modulus of the matrix resin of the reinforcement layer is 1.4 GPa or more.

An electric motor or generator assembly includes a stator, a housing, and an annular member fit between the stator and the housing, where the annular member is radially compressed so as to exert a radial force outward onto the housing and inward onto the stator to maintain a positional relationship therebetween.

The present disclosure provides, among other things, component parts that form curable compositions that are useful when forming dry-erase surface coatings and clear dry-erase surface coatings. In some embodiments, when a composition is extended on a substrate and cured, a surface coating or clear surface coating forms that demonstrates at least one dry-erase characteristic. The present disclosure also provides methods of forming and using such compositions.

The present invention relates to multi-layered composite structures and to methods for the preparation thereof. The present multi-layered composite structures are light weight and capable of high load bearing making the present multi-layered composite structures especially suitable to be used as load bearing structures in, for example, automotive. Specifically, the present invention relates to methods comprising the steps of a) providing a mould for said multi-layered composite structure; b) layering said mould with two or more layers forming the outer surface of said multi-layered composite; c) filling said layered mould with a mixture comprised of non-expanded heat-expandable microspheres and closing said mould; and d) subjecting said closed mould to a temperature of 80 C. to 140 C. during 1 to 230 minutes thereby providing a relative pressure in said closed mould of 0.1 to 20 bar through expansion of said heat-expandable microspheres thereby forming a multi-layered composite structure in said mould with a foam enforced inner core and a multi-layered outer surface; and e) separating the multi-layered composite structure from said mould.

A structural carrier comprising: a foam core and an outer layer, the foam core and the outer layer being free of structurally reinforcing ribs and open pockets, wherein the structural carrier is curable at a temperature of about 0? C. to about 50? C. The structural carrier may also foam at room temperature. The structural carrier may have an adhesive material disposed on at least a portion of the outer layer.

A body frame structure forming a side part of an automobile includes an outer panel, an inner panel that forms a closed space elongated in a first direction between the inner panel and the outer panel, a metal outer R/F disposed within the closed space, a resin R/F disposed within the closed space, and a foam disposed within the closed space. The closed space includes a three-layer structure including the outer R/F, the resin R/F, and the foam filling a space between the outer R/F and the resin R/F.

Insulating molded part having an upper part and a bottom part. The upper part and bottom part are formed as an integral injection molded or die-cast part. Further, cavities, between the upper part and the bottom part, are arranged as chambers separated from one another in an air-tight manner and the upper part and the bottom part are formed in respective cuboid manners, and the upper part is offset in a diagonal direction in relation to the bottom part.

Co-cured urethane and vinyl ester, epoxy, or unsaturated polyester gel coats having improved toughness and flexibility compared with conventional polyester gel coats are disclosed. The gel coats, which have 10-50 wt. % urethane content, adhere well to structural layers and can be used in a traditional in-mold process. Co-cured elastomeric coatings comprising from 50 to 95 wt. % of a urethane component and an unsaturated polyester, epoxy, or vinyl ester are also disclosed. Unlike conventional urethane coatings, the elastomeric coatings adhere well to structural layers and can be used in a traditional in-mold process. Castings or structural layers comprising a reinforced thermoset of co-cured urethane and vinyl ester, epoxy, or unsaturated polyester components, including 10-95 wt. % of the urethane component, are also described. The invention includes in-mold processes for making laminates that utilize the gel coats, elastomeric coatings, and/or structural layers. The in-mold process gives flexible, durable, urethane-containing laminates having good interlayer adhesion.

A foam sheet core, including a plurality of foam sheet walls defining an array of hollow cells, wherein the plurality of foam sheet walls are bonded together to form the array of hollow cells, each of the plurality of foam sheet walls has a thickness from about 0.002 inches to about 0.08 inches, and each of the plurality of foam sheet walls has an average height from about 0.05 inches to about 5 inches.

A multi-layer composition to be located onto a substrate. The composition comprises a bi-layer construction, including a first layer and a second layer, the first layer having a high elastic modulus and tensile strength in comparison to the second layer. The second layer includes a blowing agent such that, when cured, the first layer is spaced away from the substrate. The compositions of the first layer and second layer are similar, thus enabling the reconstitution of scrap into usable material for forming another multi-layer reinforcement.