C08J2325/10

Method for producing fibre composites from amorphous, chemically modified polymers

The invention relates to a method for producing thermoplastic fibre composites made from a thermoplastic matrix (M) comprising a thermoplastic moulding compound (A) and reinforcing fibres (B). Said method has technical advantages when it comprises the following steps: i) a flat structure (F) made of reinforcing fibres (B) is provided, ii) the flat structure (F) is introduced into a matrix M, iii) functional groups of the matrix are reacted with polar groups of the reinforcing fibres (B), iv) the fibre composite materials is consolidated.

Hydrogenated styrene/conjugated diolefin copolymer, foaming material thereof, and application thereof

Disclosed are a hydrogenated styrene/conjugated diolefin copolymer, a foaming material thereof, and application thereof. The copolymer contains a styrene structure unit and a hydrogenated conjugated diolefin structure unit; by taking the total content of the copolymer as a reference, the content of the styrene structure unit is 15-50 wt %, the content of 1,2-polymerization structure unit in the hydrogenated conjugated diolefin structure unit is 8-32%, the degree of randomness of the styrene structure unit in the hydrogenated conjugated diolefin structure unit is 30-80%, and the degree of hydrogenation of conjugated diolefin in the copolymer is 85-100%. The tensile strength at break of the hydrogenated styrene/conjugated diolefin copolymer is 30-60 MPa, the elongation at break is 300-600%, and the hardness (Shore A) is 70-98. Moreover, a foaming body having excellent performance including more than 60% rebound and less than 30% compression deformation can be manufactured by using a supercritical carbon dioxide foaming process.

Masterbatches for Preparing Composite Materials with Enhanced Conductivity Properties, Process and Composite Materials Produced

The present invention relates to a masterbatch to for use in a process of preparing a composite material, the masterbatch comprising a blend of a first amorphous polymer with carbon nanotubes, and at least 5% by weight of carbon nanotubes based on the total weight of the masterbatch, preferably from 5% to 15%, wherein the masterbatch exhibit a high load melt flow index HLMI1 of less than 40 g/10 min determined at 200 C. under a load of 21.6 kg according to ISO1133 and the first amorphous polymer has a melt flow index MFI1 of at least 10 g/10 min determined at 200 C. under a load of 5 kg according to ISO1133H. The invention also relates to the process for preparing such masterbatch and to process of preparing a composite material using said masterbatch.

SELF-ADSORBABLE FOAMED LAMINATE SHEET AND COMPOSITION FOR SELF-ADSORBABLE FOAMED SHEET
20190367780 · 2019-12-05 · ·

Provided are a self-adsorbable foamed laminate sheet having excellent weather resistance and causing no paste residue, and a composition for a self-adsorbable foamed sheet used to obtain the self-adsorbable foamed laminate sheet. A composition for a self-adsorbable foamed sheet comprises: a copolymer containing an unsaturated carboxylic acid monomer unit and having a solubility parameter (SP value) of 9.7 (cal/cm.sup.3).sup.1/2 or less and a glass-transition temperature of 10 C. or less; and a crosslinking agent.

Resin composition, prepreg, resin-equipped film, resin-equipped metal foil, metal-cladded layered sheet, and wiring board

A resin composition is provided containing a polymer having a structural unit represented by the following Formula (1) in the molecule, and an inorganic filler, in which the inorganic filler contains silica in which a ratio of a number of Si atoms contained in silanol groups to a total number of Si atoms is 3% or less. ##STR00001## In Formula (1), Z represents an arylene group, R.sub.1 to R.sub.3 each independently represent a hydrogen atom or an alkyl group, and R.sub.4 to R.sub.6 each independently represent a hydrogen atom or an alkyl group having 1 to 6 carbon atoms.

Polyphenyl ether resin composition and prepreg, laminated board and printed circuit board containing same

Provided are a polyphenyl ether resin composition and a prepreg and a laminated board containing same. The polyphenyl ether resin composition comprises the following components: (1) a tetrafunctional or higher multifunctional acrylate-modified thermosetting polyphenyl ether resin; and (2) a vinyl resin cross-linking agent, the weight of the vinyl resin cross-linking agent being 40-100 parts by weight based on 100 parts by weight of the tetrafunctional or higher multifunctional acrylate-modified thermosetting polyphenyl ether resin. The modified thermosetting polyphenyl ether resin, due to containing a tetrafunctional or higher multifunctional acrylate active group, can cross-link more vinyl resin cross-linking agents. Not only the prepared high-speed electronic circuit substrate has low dielectric constant and dielectric loss, but also double bonds in side chains of the vinyl resin cross-linking agent are reacted completely in a resin curing system, so that the high-speed electronic circuit substrate has a better thermo-oxidative aging resistance.

EXTRUDED POLYSTYRENE FOAM AND METHOD FOR MANUFACTURING SAME
20190330436 · 2019-10-31 · ·

An extruded polystyrene foam is produced by performing extrusion-foaming with a styrenic resin, a flame retardant composition, and a foaming agent. The flame retardant composition includes a brominated styrene-butadiene polymer, a stabilizer, and a styrenic resin; the brominated styrene-butadiene polymer is contained in an amount of 30 to 80 wt % where the total weight of the flame retardant composition is 100 wt %; and the flame retardant composition has a TGA 5 wt % reduction temperature of 255 to 270 C. The extruded polystyrene foam has excellent thermal stability, excellent flame retardancy, and an excellent appearance.

RESIN BEADS AND USE IN PROCESSING OF AQUEOUS SOLUTIONS

Provided is a resin bead comprising functional groups of structure (S1).

Masterbatches for preparing composite materials with enhanced conductivity properties, process and composite materials produced

A masterbatch for use in a process of preparing a composite material may contain a blend of a first amorphous polymer with carbon nanotubes. At least 5% by weight of carbon nanotubes may be present in the masterbatch, based on a total weight of the masterbatch. The masterbatch may exhibit a high load melt flow index HLMI1 of less than 40 g/10 min determined at 200 C. under a load of 21.6 kg according to ISO1133. The first amorphous polymer may have a melt flow index MFI1 of at least 10 g/10 min determined at 200 C. under a load of 5 kg according to ISO1133H.

SURFACE TREATMENTS FOR WEARABLE DEVICES
20190284358 · 2019-09-19 · ·

A wearable device including a body made of an elastic material having a polymeric backbone where a portion of the polymeric backbone is unsaturated. The body has an outer surface that is oxidized on at least one part with at least one functional group where the at least one part of the outer surface is more oleophobic than the body.