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1. 发明授权

US3337505A Process to improve heat stability of polyoxymethylene 失效
标题翻译：提高聚甲醛热稳定性的方法
公开(公告)号：US3337505A
公开(公告)日：1967-08-22
申请号：US31462963
申请日：1963-10-08
申请人： TOHO RAYON KK
发明人： MUNEYOSHI MINAMI , YOSHIZO TSUDA , KIICHIRO SANDO , JUNZO KASHIRO , KIYOSHI TAMURA
IPC分类号： C08G2/32
CPC分类号： C08G2/32

3. 发明授权

US3208962A Process for the manufacture of acrylonitrile polymer solution 失效
标题翻译：制备丙烯腈聚合物溶液的方法
公开(公告)号：US3208962A
公开(公告)日：1965-09-28
申请号：US7894560
申请日：1960-12-28
申请人： TOHO RAYON KK
发明人： MASAKAZU TANIYAMA , MICHIAKI NAKAJIMA
IPC分类号： C08F20/44
CPC分类号： C08F20/44 , C08F2/16
摘要： Acrylonitrile is polymerized in aqueous solution containing zinc chloride, hydrogen peroxide and from 0,1 to 10 moles of an oxygen acid of chlorine or metal salt thereof per mole of hydrogen peroxide, the total weight of hydrogen peroxide and acid being from 0,1 to 10% by weight of the monomer. The acrylonitrile may be polymerized alone or in admixture with other monomers such as methacrylic acid, amide, nitrile and esters, acrylic acid, amide and esters, e.g. methyl and butyl acrylates, allyl alcohol, vinyl acetate, itaconic acid, vinyl pyridines, N-vinyl-4-beta-hydroxyethyl-imidazole and ethylene and allyl sulphonic acids and salts thereof. Oxygen acids of chlorine specified are hypochlorous, chlorous, chloric and perchloric. In addition to zinc chloride the aqueous solution may contain other salts, e.g. sodium, ammonium, calcium and magnesium chlorides, or organic compounds, e.g. alcohols, ketones or nitriles. The process is preferably carried out by the continuous addition of the reactants to a vessel in such a way that it is occupied only by the reactants.

5. 发明授权

US3490862A Method for uniform acetylation in the anhydrous gas-phase acetylation reaction of fibers 失效
标题翻译：在纤维的气液相乙酰化反应中均匀乙酰化的方法
公开(公告)号：US3490862A
公开(公告)日：1970-01-20
申请号：US3490862D
申请日：1966-09-15
申请人： TOHO RAYON KK
发明人： YODA TATSURO , NOMURA TAKANE , HARADA TOSHIYUKI
IPC分类号： D01F2/28 , D01F11/02 , D06M13/188 , D06M13/20
CPC分类号： D06M13/188 , D01F2/28 , D01F11/02

6. 发明授权

US3287307A Method for preparation of the solution of acrylonitrile polymer 失效
标题翻译：制备丙烯腈聚合物溶液的方法
公开(公告)号：US3287307A
公开(公告)日：1966-11-22
申请号：US44365065
申请日：1965-03-29
申请人： TOHO RAYON KK
发明人： MASAKAZU TANIYAMA , ICHIRO KANDA , MICHIAKI NAKAJIMA , MAKOTO AMIYA
IPC分类号： C08F20/44
CPC分类号： C08F20/44 , C08F2/16

7. 发明授权

US3204017A Process for the manufacture of bulky fibrous wadding materials 失效
标题翻译：制造大件纤维填料的方法
公开(公告)号：US3204017A
公开(公告)日：1965-08-31
申请号：US22015162
申请日：1962-08-29
申请人： TOHO RAYON KK
发明人： KAZUO KAWAMURA
IPC分类号： D01D5/247 , D01F2/06 , D01F2/10 , D01F11/02
CPC分类号： D01D5/22 , D01D5/26 , D01F2/08 , D01F11/02

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