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1974-10-21 |
1976-11-23 |
Atlantic Richfield Company |
Process for the production of urethanes
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1975-04-02 |
1976-10-12 |
Mitsui Toatsu Chem Inc |
Process for preparation of urethanes
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1975-08-12 |
1977-10-25 |
Atlantic Richfield Company |
Process for the recovery of selenium from urethanes containing selenium or compounds thereof
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1976-08-30 |
1977-08-09 |
Atlantic Richfield Company |
Recovery of selenium from urethane solutions
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1976-09-15 |
1977-07-26 |
Atlantic Richfield Company |
Process for the recovery of selenium from selenium-containing urethane solutions
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1977-12-27 |
1978-12-19 |
Atlantic Richfield Company |
Removal of selenium from urethane solutions
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1978-03-02 |
1979-09-13 |
Bayer Ag |
Verfahren zur herstellung von urethanen
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1978-03-02 |
1979-09-13 |
Bayer Ag |
Verfahren zur herstellung von urethanen
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1978-09-06 |
1980-03-20 |
Bayer Ag |
Verfahren zur herstellung von urethanen
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1979-01-29 |
1981-03-24 |
Halcon Research And Development Corp. |
Process for the manufacture of carbamates
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1979-01-29 |
1980-12-30 |
Halcon Research & Development Corporation |
Promoted method for producing carbamates
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1979-02-09 |
1980-08-21 |
Bayer Ag |
Verfahren zur abtrennung von selen, selenverbindungen, schwefel und/oder schwefelverbindungen aus diese elemente bzw. verbindungen aufweisenden polyurethanen
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1979-03-02 |
1980-09-11 |
Bayer Ag |
Verfahren zur herstellung von urethanen
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1979-04-04 |
1980-10-23 |
Basf Ag |
Verfahren zur herstellung von n-aryloxazolidin-2,4-dionen
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1979-04-30 |
1980-11-13 |
Basf Ag |
Verfahren zur herstellung von aliphatischen und cycloaliphatischen di- und polyurethanen
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1979-04-30 |
1989-07-25 |
Basf Aktiengesellschaft |
Catalyzed process for the preparation of an aliphatic, cycloaliphatic, arylaliphatic or aliphatic-cycloaliphatic di- or polyurethane
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1979-04-30 |
1980-11-13 |
Basf Ag |
Verfahren zur herstellung von aromatischen di- und polyurethanen
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1979-05-25 |
1981-05-05 |
Halcon Research And Development Corp. |
Catalytic process for the manufacture of urethanes
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1979-05-25 |
1981-04-07 |
Halcon Research And Development Corp. |
Process for the manufacture of carbamates
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1980-02-21 |
1981-05-19 |
The Dow Chemical Company |
Preparation of carbamates from aromatic amines and organic carbonates
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1980-02-25 |
1981-05-19 |
The Dow Chemical Company |
Preparation of carbamates from aromatic amines and organic carbonates
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1981-04-20 |
1983-10-25 |
Gulf Research & Development Company |
Catalyst and process for preparing organic urethanes
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1982-02-09 |
1989-09-29 |
Anic Spa |
Procedimento per la preparazione di esteri di acidi carbammici.
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1990-12-21 |
1993-03-16 |
Union Carbide Chemicals & Plastics Technology Corporation |
Processes for producing carbamates and isocyanates
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2016-12-29 |
2019-09-11 |
大東樹脂化學股份有限公司 |
包含軟鏈段之多胺基甲酸酯、非光氣法之接續合成多元異氰酸酯、其衍生之胺甲酸酯預聚物及聚胺甲酸酯彈性體及其製備方法
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