A biobased additive is provided that is both a nucleating and a reinforcing agent when added to thermoplastic polyester (e.g., biopolyesters). A composite material, which is an additive-reinforced biopolyester, was prepared and improved thermo-mechanical properties were quantified. This composite material is a new class of biobased material that offers a sustainable, environmentally-friendly solution for packaging and other applications.

The present invention relates to a multi-aziridine crosslinker composition, characterized in that the multi-aziridine crosslinker composition is an aqueous dispersion having a pH ranging from 8 to 14 and comprises a multi-aziridine compound in dispersed form, wherein said multi-aziridine compound has: a. from 2 to 6 of the following structural units A: whereby R.sub.1 is H, R.sub.2 and R.sub.4 are independently chosen from H or an aliphatic hydrocarbon group containing from 1 to 4 carbon atoms, R a is an aliphatic hydrocarbon group containing from 1 to 4 carbon atoms, m is 1, b. one or more linking chains wherein each one of these linking chains links two of the structural units A; and c. a molecular weight in the range from 500 to 10000 Daltons wherein the molecular weight is determined using MALDI-TOF mass spectrometry according to the description.

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A composition for temporary bonding, includes: (A) a (meth)acrylate having the following (A-1) and (A-2): (A-1) a monofunctional (meth)acrylate whose side chain is an alkyl group having 18 or more carbon atoms and homopolymer has a Tg of −100° C. to 60° C., and (A-2) a polyfunctional (meth)acrylate; (B) a polyisobutene homopolymer and/or a polyisobutene copolymer; and (C) a photo radical polymerization initiator.

A medical rubber part in which non-elution characteristics are maintained even after sterilization with gamma ray, a packaging article for the medical rubber part, and a medical rubber composition for manufacturing the medical rubber part can be provided or implemented. The medical rubber composition can contain or comprise: a (a) base polymer containing a halogenated isobutylene-isoprene rubber; a (b) polyethylene; and a (c) triazine derivative as a crosslinking agent. A proportion of the triazine derivative contained per 100% by mole of a halogen of the halogenated isobutylene-isoprene rubber contained in the (a) base polymer can be 1% by mole to 15% by mole.

Disclosed is an acrylic resin composition that has excellent weather resistance and can be stably produced at high temperatures. Specifically, disclosed is an acrylic resin composition including, with respect to 100 parts by mass of an acrylic resin, from 0.1 to 8 parts by mass of a triazine-based UV absorber including 2-(4,6-diphenyl-1,3,5-triazin-2-yl)-5-[2-(2-ethylhexanoyloxy)ethoxy]phenol, wherein the acrylic resin used is an acrylic resin including at least 80 wt % of methyl methacrylate as a monomer component, and having a glass transition temperature of at least 80° C.

Disclosed is an acrylic resin composition that has excellent weather resistance and can be stably produced at high temperatures. Specifically, disclosed is an acrylic resin composition including, with respect to 100 parts by mass of an acrylic resin, from 0.1 to 8 parts by mass of a triazine-based UV absorber including 2-(4,6-diphenyl-1,3,5-triazin-2-yl)-5-[2-(2-ethylhexanoyloxy)ethoxy]phenol, wherein the acrylic resin used is an acrylic resin including at least 80 wt % of methyl methacrylate as a monomer component, and having a glass transition temperature of at least 80° C.

Disclosed is an acrylic resin composition that has excellent weather resistance and can be stably produced at high temperatures. Specifically, disclosed is an acrylic resin composition including, with respect to 100 parts by mass of an acrylic resin, from 0.1 to 8 parts by mass of a triazine-based UV absorber including 2-(4,6-diphenyl-1,3,5-triazin-2-yl)-5-[2-(2-ethylhexanoyloxy)ethoxy]phenol, wherein the acrylic resin used is an acrylic resin including at least 80 wt % of methyl methacrylate as a monomer component, and having a glass transition temperature of at least 80° C.

Disclosed is a flame retardant composition having excellent flame retardancy and processability, providing a flame-retardant synthetic resin composition including this flame retardant composition and having excellent flame retardancy and processability. Specifically, the following components are used in combination: as component (A), 20 to 50 parts by mass of at least one type of melamine salt selected from the group consisting of melamine orthophosphate, melamine pyrophosphate, and melamine polyphosphate; as component (B), 50 to 80 parts by mass of at least one type of piperazine salt selected from the group consisting of piperazine orthophosphate, piperazine pyrophosphate, and piperazine polyphosphate (the total of component (A) and component (B) is 100 parts by mass); and as component (C), 0.01 to 20.0 parts by mass of a bicyclophosphoric ester compound represented by the following general formula (1). The details of formula (1) are as described in the Description.

Disclosed is a flame retardant composition having excellent flame retardancy and processability, providing a flame-retardant synthetic resin composition including this flame retardant composition and having excellent flame retardancy and processability. Specifically, the following components are used in combination: as component (A), 20 to 50 parts by mass of at least one type of melamine salt selected from the group consisting of melamine orthophosphate, melamine pyrophosphate, and melamine polyphosphate; as component (B), 50 to 80 parts by mass of at least one type of piperazine salt selected from the group consisting of piperazine orthophosphate, piperazine pyrophosphate, and piperazine polyphosphate (the total of component (A) and component (B) is 100 parts by mass); and as component (C), 0.01 to 20.0 parts by mass of a bicyclophosphoric ester compound represented by the following general formula (1). The details of formula (1) are as described in the Description.

A composition contains the following components (A), (B), and (C), the component (A) being at least one melamine salt selected from the group consisting of melamine orthophosphate, melamine pyrophosphate, and melamine polyphosphate, the component (B) being at least one piperazine salt selected from the group consisting of piperazine orthophosphate, piperazine pyrophosphate, and piperazine polyphosphate, and the component (C) being a monohydrate of alumina. As disclosed, it is possible to provide a composition that can impart excellent levels of processability/moldability and flame retardancy to a resin by being mixed with the resin.