摘要:
Compositions comprising a vinylidene chloride polymer and a chlorotrifluoroethylene polymer provided with high oxygen- and moisture-barrier properties.
摘要:
A stack of layers 100, a lamp, a luminaire and a method of manufacturing a stack of layers is disclosed. The stack of layers 100 comprises a first outer layer 102, a second outer layer 106 and a luminescent layer 104. The first outer layer 102 and the second outer layer 106 are of a light transmitting polymeric material and have an oxygen transmission rate lower than 30 cm 3 /(m 2 -day) measured under standard temperature and pressure (STP). The luminescent layer 104 is sandwiched between the first outer layer 102 and the second outer layer 106 and comprises a light transmitting matrix polymer and a luminescent material 108 being configured to absorb light according to an absorption spectrum and convert a portion of the absorbed light towards light of a light emission spectrum.
摘要:
Latex copolymers of vinyl halide and vinylidene halide reacted in the presence of a polymeric surfactant are advantageously employed as binders in waterborne stains and other coating compositions. Monomers from which the latex is polymerized may additionally include acrylates, vinyl esters, and/or unsaturated epoxies.
摘要:
기재 필름; 상기 기재 필름 위에 위치하고, 화학식 1로 표시되는 반복단위를 가지는 제1 고분자를 포함하는 제1 고분자층; 및 상기 제1 고분자 층 위에 위치하고, 화학식 2로 표시되는 반복단위를 가지는 제2 고분자를 포함하는 제2 고분자층을 포함하며, 상기 제1 고분자층은 알칼리 이온이 부착된 그래핀 옥사이드를 더 포함하는 고분자 필름 및 그 제조방법을 제공한다.
摘要:
The aqueous dispersion, characterized in that it comprises 1) at least one vinylidene chloride polymer (Pl) and 2) at least one random, alternating or gradient copolymer (Cl) comprising a) at least one monomer unit (ml) carrying at least one phosphonate group -PO(OH)(OR 1 ) with R 1 being a hydrogen atom or an alkyl radical comprising from 1 to 11 carbon atoms, and b) monomer units (ml) which represent at least 50 % by weight of the copolymer (Cl), derived from at least one monomer (M2) chosen from styrene, maleic anhydride, itaconic acid and the (meth)acrylic monomers corresponding to the general formula : CH 2 = CR 2 R 3 in which R 2 is chosen from hydrogen and the methyl radical and R 3 is chosen from the -CN radical and the -CO-R 4 radical in which R 4 is chosen from the -OH radical, the -O-R 5 radicals with R 5 chosen from the linear or branched alkyl radicals comprising from 1 to 18 carbon atoms which optionally carry one or more -OH radicals, the epoxyalkyl radicals comprising from 2 to 10 carbon atoms and the alkoxyalkyl radicals comprising a total of 2 to 10 carbon atoms and finally R 4 is also chosen from the -NR 6 Ry radicals in which R 6 and R 7 , which are identical or different, are chosen from hydrogen and the alkyl radicals comprising from 1 to 10 carbon atoms which optionally carry one or more -OH radicals.
摘要:
The corrosion resistance, and also often the heat resistance, of an autodeposited coating in which the organic binders are predominantly copolymers of vinylidene chloride containing at least 50 % vinylidene chloride can be improved by including another type of organic resin binder in the autodeposition bath in sufficient amount to constitute at least 2 up to as much as about 40 % of the total of the PVDC and the other organic resin binder. Results can be further improved by rinsing the uncured autodeposited coating with an aqueous treatment solution that has a pH between 7 and 11 and contains between 0.01 and 5 % of anions derived from multifunctional organic acids, preferably anions of 1-hydroxyethylidene-1,1-diphosphonic acid, citric acid, tartaric acid, and/or oxalic acid before drying the coating.