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Storage stable polyisocyanates characterized by allophanate linkages 원문보기

IPC분류정보
국가/구분 United States(US) Patent 등록
국제특허분류(IPC7판)
  • C08C-018/30
출원번호 US-0006072 (1987-01-23)
발명자 / 주소
  • Narayan Thirumurti (Grosse Ile MI)
출원인 / 주소
  • BASF Corporation (Wyandotte MI 02)
인용정보 피인용 횟수 : 29  인용 특허 : 0

초록

Organic polyisocyanates characterized by allophanate linkages are prepared by reacting an organic polyisocyanate with a mono- or polyhydric compound in the presence of an organo metal catalyst. The catalyst is then deactivated using a compound such as an inorganic acid, organic acid, organic chlorof

대표청구항

A process for the preparation of liquid storage stable allophanate polyisocyanate comprising reacting an excess of an organic polyisocyanate with a mono or polyhydric compound in the presence of an organo metal catalyst wherein said catalyst is deactivated by a compound selected from the group consi

이 특허를 인용한 특허 (29)

  1. Slack William E. (Moundsville WV) Madaj Edmund J. (Imperial PA) Steppan David D. (Gibsonia PA), Allophanate-modified diphenylmethane diisocyanates and processes for their production and use.
  2. Singh Rina ; Dammann Laurence G., Amine modified polyisocyanates and their use in foundry binder systems.
  3. Tazzia Charles L. ; December Timothy S. ; Narayan Thirumurti, Cathodic electrocoat composition.
  4. Slack, William E.; Kemp, II, Hersel T.; Miller, William E., Continuous process for the production of MDI allophanates.
  5. Gillis Herbert R. (Sterrebeek BEX), Elastomers.
  6. Milliren Charles M. ; Madan Sanjeev ; Slack William E. ; Zibert Ronald ; Riccitelli Richard A. ; Miller William E., Flexible foams and flexible molded foams based on allophanate-modified diphenylmethane diisocyanates and processes for.
  7. Madan Sanjeev ; Slack William E. ; Capelli Jay M., Flexible foams and flexible molded foams based on liquid isocyanate-terminated allophanate-modified MDI prepolymer ble.
  8. Singh Rina ; Dammann Laurence G., Foundary binder systems which contain alcohol modified polyisocyanates.
  9. Singh Rina ; Dammann Laurence G., Foundry binder systems which contain alcohol modified polyisocyanates.
  10. Nodelman Neil H. ; Haider Karl W. ; Slack William E., High resilient flexible urethane foam and flexible molded foams based on allophanate modified isocyanates.
  11. Peter H. Markusch ; Richard S. Pantone ; Ralf Guether ; William E. Slack, Liquid MDI adducts wtih improved freeze stability.
  12. Yeske Philip E.,DEX ; Slack William E. ; Squiller Edward P., Low surface energy polyisocyanates and their use in one-or two-component coating compositions.
  13. Savino, Thomas; Lebedinski, Nikolay, Method of producing a uretonimine-modified isocyanate composition.
  14. Carlson, Brian W.; Nelson, Dorian; Eklund, Wayne G., Modified diphenylmethane diisocyanate-based adhesives.
  15. Singh Rina ; Dammann Laurence G., Modified polymeric aromatic isocyanates having allophanate linkages.
  16. Mager,Michael; Simon,Joachim; Homann,Malte, Polyether allophanates stable towards discolouration.
  17. Watanabe,Shinichiro; Naoi,Kunio, Polyisocyanate composition having allophanate group and high-solid coating material.
  18. Schmalstieg Lutz (Koln DEX) Pedain Josef (Koln DEX) Mertes Harald (Koln DEX), Polyisocyanate mixtures which are liquid at greater than 5°C.
  19. Narayan Thirumurti, Polymethylene polyphenyl polyisocyanate based prepolymers.
  20. Lehmann Christian M. (Warendorf DEX) Gansow Michael A. P. (Duesseldorf DEX), Process for making low density flexible polyisocyanurate-polyurethane foams.
  21. Tazzia, Charles L., Process for synthesis of allophanate compounds and compositions including the product thereof.
  22. Jon Speier ; Thirumurti Narayan ; Nikolay Lebedinski, Process for the production of allophanate modified isocyanates.
  23. Harald Mertes DE; Josef Pedain DE; Reinhard Halpaap DE, Process for the production of light-stable polyisocyanates containing allophanate groups.
  24. Barnes, James Michael; Nefzger, Hartmut; Bauer, Erika; Penninger, Stefan; Schultz, Thomas; Lutz, Heinrich; Di Mews, Horst; Gracik, Charles S., Process for the production of stable polymers.
  25. Rosthauser James W. ; Slack William E., Reactivity improvement of urethane prepolymers of allophanate-modified diphenylmethane diisocyanates.
  26. Slack William E. (Moundsville WV) Kemp ; II Hersel T. (New Martinsville WV) Steppan David D. (Gibsonia PA), Rim process using liquid methylene diphenyl diisocyanate.
  27. Carlson Gary M. ; Dammann Laurence G., Sulfonic acid blocked metal catalysts for amine trigger urethane reactions.
  28. Slack William E. (Moundsville WV) Steppan David D. (Gibsonia PA), Urethane-free, diphenylmethane diisocyanate prepolymers and process for their production.
  29. Madaj EdmundJ. ; Slack William E., Water blown polyurethane soling systems.
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