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1. 发明授权

US4141746A Cellulose sulfate esters 失效
标题翻译：硫酸纤维素酯
公开(公告)号：US4141746A
公开(公告)日：1979-02-27
申请号：US786225
申请日：1977-04-11
申请人： Richard G. Schweiger
发明人： Richard G. Schweiger
IPC分类号： C08B5/00 , C08B5/02 , C08B5/14 , C08B31/06 , C08B37/00 , C08F8/30 , C08F8/34 , C08F8/36 , C08F8/42 , C08L1/16
CPC分类号： C08F8/36 , C08B31/06 , C08B37/00 , C08B5/00 , C08B5/02 , C08B5/14 , C08F8/30 , C08F8/34 , C08F8/42
摘要： A water-soluble sulfate ester of cellulose having a degree of substitution of about 0.3 to about 1.0 with a substantially uniform distribution of sulfate ester groups among the polymer units of the cellulose. A thickened aqueous medium containing water and said water-soluble sulfate ester of cellulose having a degree of substitution of about 0.3 to about 1.0.A water-insoluble sulfate ester of cellulose which is highly swellable in the presence of water and has a degree of substitution of up to about 0.3 with the sulfate ester groups being substantially uniformly distributed among the polymer units of the cellulose.A water-soluble colloidal cellulose sulfate ester having a degree of substitution of about 1.3 to about 2 with the sulfate ester groups being substantially uniformly distributed among the polymer units of the cellulose. A thickened aqueous medium containing water and said water-soluble cellulose sulfate ester having a degree of substitution of about 1.3 to about 2.0.A water-soluble colloidal cellulose sulfate ester having a degree of substitution of about 1.0 to about 1.3 with the sulfate ester groups being substantially uniformly distributed among the polymer units of the cellulose. A thickened aqueous medium containing water and said water-soluble sulfate ester having a degree of substitution of about 1.0 to about 1.3.
摘要翻译：纤维素的聚合物单元中硫酸酯基的分布基本均匀的纤维素的水溶性硫酸酯，其取代度为约0.3至约1.0。含有水的增稠水性介质和具有约0.3至约1.0的取代度的纤维素的所述水溶性硫酸酯。

2. 发明授权

US3702843A Nitrite,nitrate and sulfate esters of polyhydroxy polymers 失效
标题翻译：多羟基聚合物的硝酸盐，硝酸盐和硫酸盐
公开(公告)号：US3702843A
公开(公告)日：1972-11-14
申请号：US3702843D
申请日：1970-05-25
申请人： SCHWEIGER RICHARD GEORG
发明人： SCHWEIGER RICHARD G
IPC分类号： C08B5/00 , C08B31/06 , C08B37/00 , C08F8/30 , C08F27/12
CPC分类号： C08B5/00 , C08B31/06 , C08B37/00 , C08F8/30
摘要： THE NOVEL POLYMER NITRITE ESTER COMPOUNDS AND THE PROCESS OF PREPARING THEM BY NITROSATING A MIXTURE CONTAINING A POLYDROXYPOLYMER AND A SUITABLE SOLVENT AT A TEMPERATURE OF 0-50*C. FURTHER, THE NOVEL PROCESS OF PREPARING A WATER SOLUBLE POLYMER NITRATE ESTER BY HEATING THE CORRESPONDING POLYMER NITRITE ESTER IN THE PRESENCE OF NITRIC ACID TO A TEMPERATURE RANGING FROM 60-110*C. FOR A PERIOD OF ONE-QUARTER TO TWO HOURS. ALSO AN INTEGRAL PART OF THIS INVENTION ARE NOVEL POLYMER SULFATE ESTER SALTS AND THE PROCESS OF PREPARING THEM COMPRISING THE STEPS OF (1) SULFATING THE CORRESPONDING POLYMER NITRITE ESTER AT A TEMPERATURE RANGING FROM ABOUT 0 TO ABOUT 25*C. THE OBTAIN THE CORRESPONDING POLYMER NITRITE SULFURIC ACID ESTER, (2) REACTING THE REACTION MIXTURE OF STEP 1 WITH A PROTIC SOLVENT TO OBTAIN THE POLYMER SULFATE ESTER, AND (3) NEUTRALIZING OR SLIGHTLY ALKALIZING THE POLYMER SULFATE ESTER REACTION MIXTURE WITH AN ALKALI TO OBTAIN THE CORRESPONDING POLYMER SULFATE ESTER SLAT. THE POLYMER SULFATE ESTER SALTS HAVE VALUABLE THICKENING PROPERTIES USEFUL TO FORM VISCOUS PRODUCTS.

3. 发明授权

US3118797A Particulate nitrocellulose coated with sorbitan trioleate 失效
标题翻译：涂有脱水山梨糖醇三油酸酯的颗粒硝酸纤维素
公开(公告)号：US3118797A
公开(公告)日：1964-01-21
申请号：US19142662
申请日：1962-05-01
申请人： OLIN MATHIESON
发明人： COFFEE RALPH E
IPC分类号： C06B21/00 , C06B25/20 , C06B45/22 , C08B31/06
CPC分类号： C06B21/0083 , C06B25/20 , C06B45/22 , C08B31/06 , Y10S260/15

4. 发明授权

US2883376A Process of manufacturing nitrostarch 失效
标题翻译：制造硝基淀粉的工艺
公开(公告)号：US2883376A
公开(公告)日：1959-04-21
申请号：US67581957
申请日：1957-08-02
申请人： VSEVOLD A AMORETTY
发明人： GRAGEROFF IGNACE A
IPC分类号： C08B31/06
CPC分类号： C08B31/06

5. 发明授权

US2127360A Process for the removal of acid from nitrated starch 失效
标题翻译：从硝化淀粉中除去酸的方法
公开(公告)号：US2127360A
公开(公告)日：1938-08-16
申请号：US11018736
申请日：1936-11-10
申请人： NITROKEMIA IPARTELEPEK RESZVEN
发明人： JOHANN HELLE , ALFONS KUNZ
IPC分类号： C08B31/06
CPC分类号： C08B31/06

6. 发明授权

US1211761A Process for the manufacture of nitrostarch. 失效
标题翻译：硝酸盐制造工艺。
公开(公告)号：US1211761A
公开(公告)日：1917-01-09
申请号：US7523616
申请日：1916-01-31
申请人： SADTLER SAMUEL S
发明人： SADTLER SAMUEL S
CPC分类号： C08B31/06

7. 发明授权

US08569214B2 Methods of using polysaccharide based cement additives 失效
公开(公告)号：US08569214B2
公开(公告)日：2013-10-29
申请号：US11755270
申请日：2007-05-30
申请人： B. Raghava Reddy , Anindya Ghosh , Russell Fitzgerald
发明人： B. Raghava Reddy , Anindya Ghosh , Russell Fitzgerald
IPC分类号： C09K8/68 , C09K8/60 , C08B37/00 , E21B33/00
CPC分类号： C09K8/10 , C04B24/38 , C04B28/02 , C08B31/04 , C08B31/06 , C08B31/18 , C08B31/185 , C08B37/0087 , C08L3/04 , C08L3/06 , C08L3/10 , C09K8/08 , C09K8/428 , C09K8/487 , C09K8/493 , C04B24/383 , C04B20/023
摘要： A method of servicing a wellbore comprising introducing to the wellbore a wellbore servicing fluid comprising an additive composition comprising a polysaccharide having carboxylate and sulfonate groups. A method of servicing a wellbore comprising preparing at the well site an additive composition comprising a polysaccharide having carboxylate and sulfonate groups, introducing the additive composition into a wellbore servicing fluid, and placing the wellbore servicing fluid into a subterranean formation. A method of preparing a wellbore servicing fluid comprising contacting a polysaccharide composition with an oxidizing agent to form an oxidized polysaccharide, and contacting the oxidized polysaccharide with a sulfonating agent to form a carboxylated sulfonated polysaccharide, and contacting the carboxylated sulfonated polysaccharide with a wellbore servicing fluid.

8. 发明授权

US5484903A Process for the production of polysaccharide carbonates 失效
标题翻译：生产多糖碳酸酯的方法
公开(公告)号：US5484903A
公开(公告)日：1996-01-16
申请号：US941495
申请日：1992-09-08
申请人： Klaus Szablikowski , Hans-Josef Buysch , Alexander Klausener
发明人： Klaus Szablikowski , Hans-Josef Buysch , Alexander Klausener
IPC分类号： C08B5/00 , C08B13/00 , C08B31/06 , C07H1/00 , C07H13/02 , C08B31/00 , C08B37/00
CPC分类号： C08B5/00 , C08B13/00 , C08B31/06
摘要： The invention relates to a process for the production of carbonic acid esters of polysaccharides which is characterized in that polysaccharides are reacted with carbonic acid esters.
摘要翻译：本发明涉及一种生产多糖碳酸酯的方法，其特征在于多糖与碳酸酯反应。

9. 发明授权

US4177345A Process for preparing a sulfate ester of a polyhydroxy polymer 失效
标题翻译：制备多羟基聚合物硫酸酯的方法
公开(公告)号：US4177345A
公开(公告)日：1979-12-04
申请号：US934818
申请日：1978-08-18
申请人： Richard G. Schweiger
发明人： Richard G. Schweiger
IPC分类号： C07C203/00 , C07C203/04 , C08B5/00 , C08B5/02 , C08B5/14 , C08B31/06 , C08B37/00 , C08F8/30 , C08F8/36 , C08F8/42
CPC分类号： C08F8/36 , C08B31/06 , C08B37/00 , C08B5/00 , C08B5/02 , C08B5/14 , C08F8/30 , C08F8/42
摘要： A process for preparing a sulfate ester of a polyhydroxy polymer which is a partially substituted polysaccharide or a polyvinyl alcohol which contains ether groups, ester groups other than sulfate, or a mixture of ether groups and ester groups other than sulfate. A nitrite ester of the partially substituted polymer is reacted with sulfur trioxide or a complex thereof to obtain a mixed nitrite:sulfate ester which is then reacted with a protic solvent to remove residual nitrite ester groups.A process for preparing a substantially uniformly substituted colloidal cellulose sulfate having a degree of substitution of about 1.1 to 2.0. A nitrite ester of cellulose having a degree of substitution less than about 2 is reacted with sulfur trioxide or a complex thereof to obtain a mixed nitrite:sulfate ester which is reacted with a protic solvent to remove residual nitrite ester groups.A process for preparing a substantially uniformly substituted cellulose sulfate having a degree of substitution ranging up to about 1.1. A nitrite ester of cellulose having a degree of substitution of about 2 to below about 3 is reacted with sulfur trioxide or a complex thereof to obtain a mixed nitrite:sulfate ester which is then reacted with a protic solvent to remove residual nitrite ester groups.
摘要翻译：制备多羟基聚合物的硫酸酯的方法，该多羟基聚合物是部分取代的多糖或含有醚基的聚乙烯醇，除硫酸酯以外的酯基，或除了硫酸酯以外的醚基和酯基的混合物。将部分取代的聚合物的亚硝酸酯与三氧化硫或其络合物反应，得到混合的亚硝酸盐：硫酸酯，然后与质子溶剂反应以除去残留的亚硝酸酯基团。一种制备基本上均匀取代的取代度为约1.1至2.0的胶体硫酸纤维素的方法。将取代度小于约2的纤维素的亚硝酸酯与三氧化硫或其配合物反应，得到与质子溶剂反应以除去残留的亚硝酸酯基团的混合亚硝酸盐：硫酸酯。一种制备基本上均匀取代的具有高达约1.1的取代度的硫酸纤维素的方法。具有约2至低于约3的取代度的纤维素的亚硝酸酯与三氧化硫或其络合物反应，得到混合的亚硝酸盐：硫酸酯，然后与质子溶剂反应以除去残留的亚硝酸酯基团。

10. 再颁专利

USRE28809E Preparation of starch esters 失效
公开(公告)号：USRE28809E
公开(公告)日：1976-05-11
申请号：US542929
申请日：1975-01-22
申请人： Martin M. Tessler
发明人： Martin M. Tessler
IPC分类号： C08B31/02 , C08B31/06
CPC分类号： C08B31/06 , C08B31/02 , Y10T428/31982 , Y10T442/2402
摘要： Aqueous slurries or dispersions of starch are reacted with imadazolides of carboxylic or sulfonic acids to yield starch ester derivatives. These starch products can also be prepared in non-aqueous solvents or by a dry reaction process.

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