Abstract:
A pH-modulating poly(glycerol sebacate) composition includes poly(glycerol sebacate) and at least one pH-modulating agent associated with the poly(glycerol sebacate). A process of making a pH-modulating poly(glycerol sebacate) composition includes forming a poly(glycerol sebacate) by a water-mediated reaction from glycerol and sebacic acid and associating at least one pH-modulating agent with the poly(glycerol sebacate). A process of modulating a pH of a buffered aqueous solution includes placing a pH-modulating poly(glycerol sebacate) composition in a buffered aqueous solution. The pH-modulating agent is released into the buffered aqueous solution during degradation of the poly(glycerol sebacate) to reduce a decrease in pH of the buffered aqueous solution caused by degradation of the poly(glycerol sebacate).
Abstract:
본 발명은 금속착화제를 포함하고, 철 이온 농도가 상이한 제1 비닐계 단량체 및 제2 비닐계 단량체를 포함하는 열안정성이 우수한 비닐계 열가소성 수지 조성물, 이의 제조방법 및 이로부터 제조된 비닐계 열가소성 수지에 관한 것이다. 이에 따른 비닐계 열가소성 수지 조성물은 열안정성이 향상될 수 있으며, 상기 조성물로부터 제조된 비닐계 열가소성 수지는 열안정성이 우수할 수 있으며, 이에 이를 필요로 하는 산업 특히 비닐계 열가소성 수지 및 이의 성형 가공품 산업에 용이하게 적용할 수 있다.
Abstract:
Asphalt-based compositions that contain little or no VOCs. The compositions are particularly useful for roofing applications, including as plastic roofing cement, flashing cement, roof coatings, and primers. The compositions include asphalt, a VOC-free solvent, a surfactant and clay. The compositions may also include fibers, technical or functional tillers, and a wet surface adhesion additive. The compositions may further include aluminum flakes for enhanced durability, strength, reflectivity and colorants for enhanced appearance.
Abstract:
The present invention provides curable compositions comprising non-tin metal accelerators that accelerate the condensation curing of moisture-curable silicones/non-silicones. In particular, the present invention provides an accelerator comprising amino acid compounds that are suitable as replacements for organotin in sealant and RTV formulations.
Abstract:
The invention provides a novel bio-based dispersant comprising the reaction product of a natural triglyceridic oil, fatty acid oil or fatty acid oil derivative wherein said natural triglyceridic oil, fatty acid oil, or fatty acid oil derivative containing greater than about 80 percent of unsaturated or conjugated unsaturated fatty acids with a substrate capable of undergoing an ene or Diels Alder reaction to form an adduct that is further esterified and/or neutralized with an alkanolamine or alkoxylated alkanolamine.
Abstract:
Process for curing a thermoset resin comprising the step of contacting said resin with (i) an imine of the structure C(R 2 )(R 3 )=N-R 1 wherein R 1 is selected from hydrogen, hydroxyl, linear or branched alkyl having 1-22 carbon atoms, cycloalkyl having 3-22carbon atoms,aryl having 6 to 15 carbon atoms, andaralkylhaving 7 to 22 carbon atoms, which alkyl, cycloalkyl, aryl, and aralkyl groups may be optionally substituted with one or more groups containing heteroatoms selected from S, O, P, and/or Si. R 2 is selected from C(R 6 )(R 5 )-C(=O)-R 4 ,-C(R 6 )(R 5 )-C(=S)-R 4 , and -C(R 6 )(R 5 )-C(=N)-R 4 , wherein R 4 , R 5 , and R 6 are selected from hydrogen,linear or branched alkyl having 1-6 carbon atoms, cycloalkyl having 3-12 carbon atoms, aryl, aralkyl, alkoxy having 1-6 carbon atoms, and aryloxy. R 3 is selected from linear or branched alkyl having 1-22carbon atoms, 1 cycloalkyl having 3-22carbon atoms,aryl having 6 to 15 carbon atoms, and aralkylhaving 7 to 22 carbon atoms, and (ii) methyl isopropyl ketoneperoxide.