ES418779A1 - Process for the production of polymer - Google Patents

Process for the production of polymer

Info

Publication number
ES418779A1
ES418779A1 ES418779A ES418779A ES418779A1 ES 418779 A1 ES418779 A1 ES 418779A1 ES 418779 A ES418779 A ES 418779A ES 418779 A ES418779 A ES 418779A ES 418779 A1 ES418779 A1 ES 418779A1
Authority
ES
Spain
Prior art keywords
curing agent
prepolymer
temperature
liquid
maintained
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.)
Expired
Application number
ES418779A
Other languages
Spanish (es)
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.)
Imerys Minerals Ltd
Original Assignee
English Clays Lovering Pochin 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 English Clays Lovering Pochin Co Ltd filed Critical English Clays Lovering Pochin Co Ltd
Publication of ES418779A1 publication Critical patent/ES418779A1/en
Expired legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
    • C08G18/00—Polymeric products of isocyanates or isothiocyanates
    • C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
    • C08G18/08—Processes
    • C08G18/10—Prepolymer processes involving reaction of isocyanates or isothiocyanates with compounds having active hydrogen in a first reaction step
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D1/00—Processes for applying liquids or other fluent materials
    • B05D1/002—Processes for applying liquids or other fluent materials the substrate being rotated
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D7/00—Processes, other than flocking, specially adapted for applying liquids or other fluent materials to particular surfaces or for applying particular liquids or other fluent materials
    • B05D7/22—Processes, other than flocking, specially adapted for applying liquids or other fluent materials to particular surfaces or for applying particular liquids or other fluent materials to internal surfaces, e.g. of tubes
    • B05D7/222—Processes, other than flocking, specially adapted for applying liquids or other fluent materials to particular surfaces or for applying particular liquids or other fluent materials to internal surfaces, e.g. of tubes of pipes
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
    • C08G18/00—Polymeric products of isocyanates or isothiocyanates
    • C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
    • C08G18/08—Processes
    • C08G18/0895—Manufacture of polymers by continuous processes
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
    • C08G85/00—General processes for preparing compounds provided for in this subclass
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D1/00—Processes for applying liquids or other fluent materials
    • B05D1/002—Processes for applying liquids or other fluent materials the substrate being rotated
    • B05D1/005—Spin coating

Landscapes

  • Chemical & Material Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Organic Chemistry (AREA)
  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Wood Science & Technology (AREA)
  • Processing And Handling Of Plastics And Other Materials For Molding In General (AREA)
  • Polyurethanes Or Polyureas (AREA)
  • Other Resins Obtained By Reactions Not Involving Carbon-To-Carbon Unsaturated Bonds (AREA)
  • Processes Of Treating Macromolecular Substances (AREA)

Abstract

A process for the production of a polymer from a copolymer and a curing agent thereof, the process of which consists of: (a) heating the prepolymer to a temperature within the reaction range of the curing agent with the prepolymer in liquid form to cure the latter; (b) degassing the prepolymer; (c) transferring the heated, degassed prepolymer to a first storage tank that is maintained at a practically constant temperature within said range; (d) supplying the curing agent in liquid form at a temperature at which it is capable of curing the prepolymer and below the temperature at which the curing agent deteriorates; (e) storing the liquid curing agent in a second storage tank that is maintained at a practically constant temperature below the temperature at which the curing agent deteriorates; (f) continuously transfer the hot prepolymer and liquid curing agent, via recycling circuits, from the first and second storage tanks respectively to discrete lines located in a mixing head and back to the respective storage tanks, the mixing head continuously or intermittently as needed to mix and then discharge the prepolymer and curing agent mixture. (Machine-translation by Google Translate, not legally binding)
ES418779A 1972-09-14 1973-09-14 Process for the production of polymer Expired ES418779A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB4278672A GB1444908A (en) 1972-09-14 1972-09-14 Process for the production of polymer

Publications (1)

Publication Number Publication Date
ES418779A1 true ES418779A1 (en) 1976-06-16

Family

ID=10425970

Family Applications (1)

Application Number Title Priority Date Filing Date
ES418779A Expired ES418779A1 (en) 1972-09-14 1973-09-14 Process for the production of polymer

Country Status (9)

Country Link
JP (1) JPS5328947B2 (en)
BR (1) BR7307172D0 (en)
CA (1) CA998796A (en)
DE (1) DE2346054A1 (en)
ES (1) ES418779A1 (en)
FR (1) FR2200327B1 (en)
GB (1) GB1444908A (en)
IT (1) IT999557B (en)
ZA (1) ZA737170B (en)

Also Published As

Publication number Publication date
AU6025273A (en) 1975-03-13
JPS49133486A (en) 1974-12-21
DE2346054A1 (en) 1974-03-28
BR7307172D0 (en) 1974-07-18
IT999557B (en) 1976-03-10
JPS5328947B2 (en) 1978-08-17
FR2200327A1 (en) 1974-04-19
ZA737170B (en) 1974-08-28
CA998796A (en) 1976-10-19
FR2200327B1 (en) 1978-11-10
GB1444908A (en) 1976-08-04

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