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公开(公告)号:US5167946A
公开(公告)日:1992-12-01
申请号:US784141
申请日:1991-10-29
摘要: Diaryl carbonates are prepared by the catalyzed reaction of an aryl hydroxide with a carbonyl halide in the liquid phase at a temperature from greater than 100.degree. to less than 150.degree. C.
摘要翻译: 碳酸二芳基酯通过在大于100℃至小于150℃的温度下在液相中芳基氢氧化物与羰基卤的催化反应来制备。
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2.
公开(公告)号:US5424473A
公开(公告)日:1995-06-13
申请号:US214863
申请日:1994-03-16
申请人: Rafael Galvan , Michael J. Mullins
发明人: Rafael Galvan , Michael J. Mullins
IPC分类号: C07C68/02
CPC分类号: C07C68/02
摘要: A process of preparing diaryl carbonates, such as diphenyl carbonate, and aryl haloformates, such as phenyl chloroformate. The process involves contacting phenol or a substituted phenol with a carbonyl halide, such as phosgene, in the presence of a phosphorus-containing catalyst. The catalyst is selected from alkyl phosphates, aryl phosphites, aryl phosphates, organic phosphinites and phosphinates, organic pyrophosphates, inorganic phosphorous and phosphoric acids, and phosphorus oxides.
摘要翻译: 制备碳酸二芳酯如碳酸二苯酯和卤代甲酸芳基酯如氯甲酸苯酯的方法。 该方法包括在含磷催化剂存在下使苯酚或取代的酚与碳酰卤如光气接触。 催化剂选自磷酸烷基酯,亚磷酸芳基酯,磷酸二氢铵,有机亚磷酸盐和次膦酸盐,有机焦磷酸盐,无机磷和磷酸以及磷氧化物。
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公开(公告)号:US08785548B2
公开(公告)日:2014-07-22
申请号:US13250162
申请日:2011-09-30
申请人: Timothy D. Klots , Rafael Galvan , Jon Debling
发明人: Timothy D. Klots , Rafael Galvan , Jon Debling
IPC分类号: C09D125/16 , C08F212/12 , C08F220/14 , C08F220/32 , C09D11/106 , C08F8/04 , C09D11/10 , C08F220/18 , C08F220/28
CPC分类号: C08F4/34 , C08F8/04 , C08F212/08 , C08F212/12 , C08F220/14 , C08F220/32 , C08F2220/1825 , C08F2220/1858 , C08F2220/281 , C08F2220/325 , C09D11/106 , C09D11/107 , C09D125/14 , C09D125/16 , C09D133/10
摘要: Styrenic (meth)acrylic oligomers that are prepared at lower temperature than conventional solid grade oligomers, or are hydrogenated, contain fewer terminal vinylic unsaturations, when compared to such conventional styrenic (meth)acrylic oligomers prepared by the customary high temperature processes. Styrenic (meth)acrylic oligomers that contain fewer terminal vinylic unsaturations demonstrate improved thermal stability and may provide improved resistance to UV weathering compared to the conventional and non-hydrogenated styrenic (meth)acrylic oligomers.
摘要翻译: 当与通常的高温工艺制备的常规苯乙烯(甲基)丙烯酸低聚物相比时,在比常规固体级低聚物低的温度下制备或被氢化的苯乙烯(甲基)丙烯酸低聚物含有较少的末端乙烯基不饱和度。 含有较少末端乙烯基不饱和基团的苯乙烯(甲基)丙烯酸低聚物表现出改善的热稳定性,并且与传统和非氢化苯乙烯(甲基)丙烯酸低聚物相比,可提供改善的抗紫外线风化性能。
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公开(公告)号:US20120083572A1
公开(公告)日:2012-04-05
申请号:US13250162
申请日:2011-09-30
申请人: Timothy D. Klots , Rafael Galvan , Jon Debling
发明人: Timothy D. Klots , Rafael Galvan , Jon Debling
IPC分类号: C09D125/16 , C08F2/06 , C08F212/12 , C08F220/32 , C08F220/18 , C08F8/04 , C08F2/04 , C08F220/06
CPC分类号: C08F4/34 , C08F8/04 , C08F212/08 , C08F212/12 , C08F220/14 , C08F220/32 , C08F2220/1825 , C08F2220/1858 , C08F2220/281 , C08F2220/325 , C09D11/106 , C09D11/107 , C09D125/14 , C09D125/16 , C09D133/10
摘要: Styrenic (meth)acrylic oligomers that are prepared at lower temperature than conventional solid grade oligomers, or are hydrogenated, contain fewer terminal vinylic unsaturations, when compared to such conventional styrenic (meth)acrylic oligomers prepared by the customary high temperature processes. Styrenic (meth)acrylic oligomers that contain fewer terminal vinylic unsaturations demonstrate improved thermal stability and may provide improved resistance to UV weathering compared to the conventional and non-hydrogenated styrenic (meth)acrylic oligomers.
摘要翻译: 当与通常的高温工艺制备的常规苯乙烯(甲基)丙烯酸低聚物相比时,在比常规固体级低聚物低的温度下制备或被氢化的苯乙烯(甲基)丙烯酸低聚物含有较少的末端乙烯基不饱和度。 含有较少末端乙烯基不饱和基团的苯乙烯(甲基)丙烯酸低聚物表现出改善的热稳定性,并且与传统和非氢化苯乙烯(甲基)丙烯酸低聚物相比,可提供改善的抗紫外线风化性能。
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