JPS5616535A - Extremely low-viscosity nitrocellulose composition for urethane and its production - Google Patents

Extremely low-viscosity nitrocellulose composition for urethane and its production

Info

Publication number
JPS5616535A
JPS5616535A JP9162979A JP9162979A JPS5616535A JP S5616535 A JPS5616535 A JP S5616535A JP 9162979 A JP9162979 A JP 9162979A JP 9162979 A JP9162979 A JP 9162979A JP S5616535 A JPS5616535 A JP S5616535A
Authority
JP
Japan
Prior art keywords
nitrocellulose
wetting agent
depolymerization
hydrogen peroxide
effect
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
JP9162979A
Other languages
Japanese (ja)
Inventor
Matsue Yamagami
Sadao Fukutomi
Seiichi Fukuyoshi
Fumihiko Sato
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Asahi Chemical Industry Co Ltd
Original Assignee
Asahi Chemical Industry Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Asahi Chemical Industry Co Ltd filed Critical Asahi Chemical Industry Co Ltd
Priority to JP9162979A priority Critical patent/JPS5616535A/en
Publication of JPS5616535A publication Critical patent/JPS5616535A/en
Pending legal-status Critical Current

Links

Landscapes

  • Processes Of Treating Macromolecular Substances (AREA)
  • Compositions Of Macromolecular Compounds (AREA)
  • Polyurethanes Or Polyureas (AREA)
  • Paints Or Removers (AREA)

Abstract

PURPOSE: Titled lightly colored dope composition that is produced by dissolving nitrocellulose which is previously wetted by adding a wetting agent to an organic solvent, depolymerizing with heat and removing the wetting agent after or before the depolymerization, thus being effectively reactive with isocyanate and permitting safe storage and handling.
CONSTITUTION: Nitrocellulose is wetted with a wetting agent such as an alcohol/ or water to contain less than 50% of the agent and combined with an organic solvent, which is inert to isocyanate and dissolves nitrocellulose, such as ethyl acetate or acetone to prepare a solution of 5W50% concentration. Then, after the wetting agent is distilled off, the dope is heated in the presence of hydrogen peroxide to effect depolymerization or after the depolymerization is effect in the presence of hydrogen peroxide, the wetting agent is removed, thus giving a dope containing 10W80%, preferably 10W70% nitrocellulose. The amount of hydrogen peroxide is 0.1W30% based on the nitrocellulose.
EFFECT: The amount of the thinner can be reduced and this means that it has advantage from resource-saving and environmental point of view.
COPYRIGHT: (C)1981,JPO&Japio
JP9162979A 1979-07-20 1979-07-20 Extremely low-viscosity nitrocellulose composition for urethane and its production Pending JPS5616535A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP9162979A JPS5616535A (en) 1979-07-20 1979-07-20 Extremely low-viscosity nitrocellulose composition for urethane and its production

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP9162979A JPS5616535A (en) 1979-07-20 1979-07-20 Extremely low-viscosity nitrocellulose composition for urethane and its production

Publications (1)

Publication Number Publication Date
JPS5616535A true JPS5616535A (en) 1981-02-17

Family

ID=14031837

Family Applications (1)

Application Number Title Priority Date Filing Date
JP9162979A Pending JPS5616535A (en) 1979-07-20 1979-07-20 Extremely low-viscosity nitrocellulose composition for urethane and its production

Country Status (1)

Country Link
JP (1) JPS5616535A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH04154877A (en) * 1990-10-19 1992-05-27 Asahi Chem Ind Co Ltd High-clarity urethane coating compound composition

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH04154877A (en) * 1990-10-19 1992-05-27 Asahi Chem Ind Co Ltd High-clarity urethane coating compound composition

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