摘要:
A light stabilizer composition containing a hindered amine compound obtained by the reaction between a 2,2,6,6-tetramethylpiperidinol and a carbonic ester and having improved handling properties. The composition contains (A) 100 parts by mass of silica having a water content of 2 to 7 wt% impregnated with (B) 10 to 300 parts by mass of a hindered amine compound represented by general formula (1). The composition preferably contains (C) 5 to 500 parts by mass of a benzotriazole light stabilizer represented by general formula (3). The symbols used in formulae (1) and (3) are as defined in the description.
摘要:
An aqueous dispersion of polyurethane resin obtained by a chain elongation reaction in water, by adding (C) at least one chain extender selected from a group consisting of water-soluble polyamines, hydrazine and derivatives thereof to a dispersion liquid obtained by emulsifying and dispersing a mixture in water, said mixture comprising (B) at least one compound selected from the phosphorous compounds represented by the following formula (1) and (A) an urethane prepolymer and/or a neutralized urethane prepolymer material which has an isocyanate group at the terminal, wherein an urethane prepolymer of said component (A) is an urethane prepolymer obtained by (a1) an organic polyisocyanate and (a2) a polymeric polyol, and said neutralized urethane prepolymer material is a neutralized material obtained by neutralizing an urethane prepolymer which is obtained by further using (a3) compound having an anionic hydrophilic group and at least two active hydrogens in a molecule together with said components (a1) and (a2);
摘要:
The present invention provides an antioxidant for a thermoplastic resin that provides an excellent oxidation-preventing effect to a thermoplastic resin and that has an excellent effect of preventing a change in color caused by nitrogen oxides. Specifically, a compound represented by any of General Formulae (2) to (4), particularly a compound in which R 2 in the formulae is an alkyl group having 1 to 8 carbon atoms whose terminal on an oxygen atom side is linked with -CO-O-, is used as the antioxidant for a thermoplastic resin. Details of General Formulae (2) to (4) are as described in the description.
摘要:
Provided are: a photostabilizer masterbatch in which the problems of the occurrence of blocking over time due to the effect of temperature fluctuations in the environment and the difficulty in handling due to the resulting solidification in aggregates are overcome; and a method of producing the same. The photostabilizer masterbatch is obtained by adding and mixing 80 to 300 parts by mass of (B) a hindered amine compound represented by the following Formula (1) with respect to 100 parts by mass of (A) a silica produced by a wet process and subsequently further adding and mixing 5 to 50 parts by mass of (C) a silica produced by a dry process:
(wherein, R 1 represents a hydrogen atom, a hydroxy group, an alkyl, hydroxyalkyl, alkoxy or hydroxyalkoxy group having 1 to 30 carbon atoms, or an oxy radical; and R 2 represents an alkyl group having 1 to 30 carbon atoms, an alkenyl group having 2 to 30 carbon atoms, or a group represented by the following Formula (2))
(wherein, R 3 represents the same as R 1 in the Formula (1)).