Patent classifications
C
CHEMISTRY; METALLURGY
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C08
ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
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C08J
WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
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2431/00
Characterised by the use of copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by an acyloxy radical of a saturated carboxylic acid, or carbonic acid, or of a haloformic acid
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C08J2431/02
Characterised by the use of omopolymers or copolymers of esters of monocarboxylic acids
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C08J2431/02

Heat-curable resin composition, prepreg, and method for producing fiber-reinforced composite using each of same
10875976 · 2020-12-29 · ·

The present invention provides a heat-curable resin composition, which comprises (1) a heat-curable resin mixture comprising a heat-curable resin (a) and thickener particles (b) and exhibiting a viscosity (150 C.) after having been held at a temperature of 150 C. for 30 seconds that is a viscosity (S), and (2) a curing agent, and is characterized in that the heat-curable resin composition exhibits a lowest viscosity (R) at 80-120 C., the lowest viscosity (R) is 0.1-10 Pa.Math.s, and the viscosity (S) and lowest viscosity (R) satisfy the relationship of formula (1):
5<S/R<200formula (1).

METHOD FOR PRODUCING A SOUND- AND/OR HEAT-INSULATING ELEMENT, AND SOUND- AND/OR HEAT-INSULATING ELEMENT
20190040221 · 2019-02-07 ·

The invention relates to a method for producing a sound and/or thermal insulation element using foamable and/or prefoamed polymer particles which are coated with a binding agent, and preferably with an organic binding agent, and thereafter are subjected to a shaping process during which the polymer particles are bonded and/or sintered to one another, the bonding being caused by way of the binding agent. According to the invention, a non-hydrophilic binding agent is used for coating the foamable and/or prefoamed polymer particles.

The invention furthermore relates to a sound and/or thermal insulation element.

High-density polyethylene mixed resin particles, composite resin particles, foamed particles and foamed molded body
09902828 · 2018-02-27 · ·

High-density polyethylene mixed resin particles used as seed particles during seed polymerization, wherein said seed particles contain a mixed resin of 100 parts by weight of high-density polyethylene and 20 to 100 parts by weight of an ethylene copolymer; said high-density polyethylene has a density of 935 to 960 kg/m.sup.3 and a softening temperature of 115 to 130 C.; said ethylene copolymer is a copolymer of an ester-based monomer selected from an acrylic acid alkyl ester and an aliphatic saturated monocarboxylic acid vinyl, and etylene, contains 1 to 20% by weight of an ester-based monomer-derived component, and has a softening temperature of 75 to 110 C.; said acrylic acid alkyl ester is selected from methyl acrylate and ethyl acrylate; and said aliphatic saturated monocarboxylic acid vinyl is selected from vinyl acetate and vinyl propionate.