The invention provides a flame retardant-stabilizer combination for thermoplastic polymers, comprising as component A 20% to 99.7% by weight of phosphinic salt of the formula (I), (I), in which R.sub.1 and R.sub.2 are each ethyl, M is Al and m is 3; as component B 0.2% to 16% by weight of aluminium salts of ethylbutylphosphinic acid, of dibutylphosphinic acid, of ethylhexylphosphinic acid, of butylhexylphosphinic acid and/or of dihexylphosphinic acid; as component C 0.1% to 80% by weight of a salt of phosphorous acid having the general formula (II) [HP(═O)O.sub.2].sup.2−M.sup.m+(II) in which M is Zn and m is 2; as component D 0% to 80% by weight of a salt of phosphorous acid having the general formula (III) [HP(═O)O.sub.2].sup.2−.sub.3 M.sup.m+.sub.2 (III) in which M is Al and m is 3; as component E 0% to 30% by weight of a nitrogen-containing synergist and/or of a phosphorus-containing and/or nitrogen-containing flame retardant; as component F 0% to 10% by weight of an inorganic synergist selected from zinc borate, zinc stannate, boehmite and/or hydrotalcite; as component G 0% to 3% by weight of an organic phosphonite and/or a mixture of an organic phosphonite and an organic phosphite and as component H 0% to 3% by weight of an ester and/or salt of long-chain aliphatic carboxylic acids (fatty acids) typically having chain lengths of C.sub.14 to C.sub.40, where the sum total of the components is always 100% by weight.

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A photocurable silicone composition is disclosed. A cured product of the composition is also disclosed, as well as methods of forming the same. The photocurable silicone composition comprises: (A) a specific organopolysiloxane having alkenyl groups in a molecule; (B) a compound having at least two thiol groups in a molecule; (C) a photoradical initiator having a phosphorus atom; and (D) a specific hydroxyphenyl triazine compound. The composition exhibits excellent curability by LED lamp with wide UV-Visible range as well as metal-halide lamp, and cures to form a cure product exhibiting excellent resistance to light.

A photocurable silicone composition is disclosed. A cured product of the composition is also disclosed, as well as methods of forming the same. The photocurable silicone composition comprises: (A) a specific organopolysiloxane having alkenyl groups in a molecule; (B) a compound having at least two thiol groups in a molecule; (C) a photoradical initiator having a phosphorus atom; and (D) a specific hydroxyphenyl triazine compound. The composition exhibits excellent curability by LED lamp with wide UV-Visible range as well as metal-halide lamp, and cures to form a cure product exhibiting excellent resistance to light.

A photocurable silicone composition is disclosed. A cured product of the composition is also disclosed, as well as methods of forming the same. The photocurable silicone composition comprises: (A) a specific organopolysiloxane having alkenyl groups in a molecule; (B) a compound having at least two thiol groups in a molecule; (C) a photoradical initiator having a phosphorus atom; and (D) a specific hydroxyphenyl triazine compound. The composition exhibits excellent curability by LED lamp with wide UV-Visible range as well as metal-halide lamp, and cures to form a cure product exhibiting excellent resistance to light.

The present disclosure provides an aluminum phosphite-based complex with dual-peak thermal gravity decomposition characteristics and a preparation method and use thereof. A structural formula of the complex is as follows: ((HPO.sub.3).sub.3Al.sub.2).((H.sub.2PO.sub.3).sub.3Al).sub.x, wherein x is 0.01-0.5 and represents a molar ratio of (H.sub.2PO.sub.3).sub.3Al to (HPO.sub.3).sub.3Al.sub.2. The dual-peak thermal gravity decomposition characteristics are as follows: a first gravity peak temperature is 460-490° C., and a second gravity peak temperature is 550-580° C. The preparation method includes: uniformly mixing aluminum phosphite and aluminum hydrogen phosphite according to the ratio in the structural formula, and then performing stepwise heating at a rate of 5° C./min to raise the temperature of a mixture from the normal temperature to no more than 350° C. within 1-10 hours, so as to obtain the aluminum phosphite-based complex with the dual-peak thermal gravity decomposition characteristics. The complex may serve as or is configured to prepare a flame retardant or a flame-retardant synergist.

The present disclosure provides an aluminum phosphite-based complex with dual-peak thermal gravity decomposition characteristics and a preparation method and use thereof. A structural formula of the complex is as follows: ((HPO.sub.3).sub.3Al.sub.2).((H.sub.2PO.sub.3).sub.3Al).sub.x, wherein x is 0.01-0.5 and represents a molar ratio of (H.sub.2PO.sub.3).sub.3Al to (HPO.sub.3).sub.3Al.sub.2. The dual-peak thermal gravity decomposition characteristics are as follows: a first gravity peak temperature is 460-490° C., and a second gravity peak temperature is 550-580° C. The preparation method includes: uniformly mixing aluminum phosphite and aluminum hydrogen phosphite according to the ratio in the structural formula, and then performing stepwise heating at a rate of 5° C./min to raise the temperature of a mixture from the normal temperature to no more than 350° C. within 1-10 hours, so as to obtain the aluminum phosphite-based complex with the dual-peak thermal gravity decomposition characteristics. The complex may serve as or is configured to prepare a flame retardant or a flame-retardant synergist.

The present disclosure provides an aluminum phosphite-based complex with dual-peak thermal gravity decomposition characteristics and a preparation method and use thereof. A structural formula of the complex is as follows: ((HPO.sub.3).sub.3Al.sub.2).((H.sub.2PO.sub.3).sub.3Al).sub.x, wherein x is 0.01-0.5 and represents a molar ratio of (H.sub.2PO.sub.3).sub.3Al to (HPO.sub.3).sub.3Al.sub.2. The dual-peak thermal gravity decomposition characteristics are as follows: a first gravity peak temperature is 460-490° C., and a second gravity peak temperature is 550-580° C. The preparation method includes: uniformly mixing aluminum phosphite and aluminum hydrogen phosphite according to the ratio in the structural formula, and then performing stepwise heating at a rate of 5° C./min to raise the temperature of a mixture from the normal temperature to no more than 350° C. within 1-10 hours, so as to obtain the aluminum phosphite-based complex with the dual-peak thermal gravity decomposition characteristics. The complex may serve as or is configured to prepare a flame retardant or a flame-retardant synergist.

Multilayer optical films including a substrate and at least a first layer overlaying a surface of the substrate, in which the at least first layer includes a (co)polymer obtained by polymerizing a polymerizable composition including a fluorinated coupling agent and at least one free-radically polymerizable monomer, oligomer, or mixture thereof. Processes for making multilayer optical films using the polymerizable compositions also are taught. Articles including the multilayer optical film also are disclosed, in which the article preferably is selected from a photovoltaic device, a display device, a solid-state lighting device, a sensor, a medical or biological diagnostic device, an electrochromic device, light control device, or a combination thereof.

Multilayer optical films including a substrate and at least a first layer overlaying a surface of the substrate, in which the at least first layer includes a (co)polymer obtained by polymerizing a polymerizable composition including a fluorinated coupling agent and at least one free-radically polymerizable monomer, oligomer, or mixture thereof. Processes for making multilayer optical films using the polymerizable compositions also are taught. Articles including the multilayer optical film also are disclosed, in which the article preferably is selected from a photovoltaic device, a display device, a solid-state lighting device, a sensor, a medical or biological diagnostic device, an electrochromic device, light control device, or a combination thereof.

Provided are a polyamide resin having high crystallinity, a high glass transition temperature, and a low mass loss rate, and a polyamide resin composition and a molded article in which the polyamide resin is used. The polyamide resin includes a diamine-derived structural unit and a dicarboxylic acid-derived structural unit, in which 50 mol % or more of the diamine-derived structural units are structural unit derived from p-benzenediethanamine, and of the dicarboxylic acid-derived structural units, from not less than 20 mol % to less than 95 mol % are structural units derived from an aromatic dicarboxylic acid and from more than 5 mol % to not more than 80 mol % are structural units derived from an α,ω-linear aliphatic dicarboxylic acid having from 4 to 15 carbons.