FR2046870A2 - Polyurethane-based coating compns - Google Patents

Polyurethane-based coating compns

Info

Publication number
FR2046870A2
FR2046870A2 FR7022534A FR7022534A FR2046870A2 FR 2046870 A2 FR2046870 A2 FR 2046870A2 FR 7022534 A FR7022534 A FR 7022534A FR 7022534 A FR7022534 A FR 7022534A FR 2046870 A2 FR2046870 A2 FR 2046870A2
Authority
FR
France
Prior art keywords
mixt
mol
compns
polyurethane
polyols
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.)
Granted
Application number
FR7022534A
Other languages
French (fr)
Other versions
FR2046870B2 (en
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.)
Dexter Corp
Original Assignee
Dexter Corp
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 Dexter Corp filed Critical Dexter Corp
Publication of FR2046870A2 publication Critical patent/FR2046870A2/en
Application granted granted Critical
Publication of FR2046870B2 publication Critical patent/FR2046870B2/fr
Granted 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
    • C08G18/70—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the isocyanates or isothiocyanates used
    • C08G18/72—Polyisocyanates or polyisothiocyanates
    • C08G18/74—Polyisocyanates or polyisothiocyanates cyclic
    • C08G18/75—Polyisocyanates or polyisothiocyanates cyclic cycloaliphatic
    • C08G18/758—Polyisocyanates or polyisothiocyanates cyclic cycloaliphatic containing two or more cycloaliphatic rings
    • 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
    • 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
    • C08G18/12—Prepolymer processes involving reaction of isocyanates or isothiocyanates with compounds having active hydrogen in a first reaction step using two or more compounds having active hydrogen in the first polymerisation step
    • 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
    • C08G18/28—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the compounds used containing active hydrogen
    • C08G18/40—High-molecular-weight compounds
    • C08G18/42—Polycondensates having carboxylic or carbonic ester groups in the main chain
    • C08G18/4202—Two or more polyesters of different physical or chemical nature

Landscapes

  • Chemical & Material Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Organic Chemistry (AREA)
  • Paints Or Removers (AREA)
  • Polyurethanes Or Polyureas (AREA)

Abstract

Cpsns. comprise a mixt. of polyols, and a polyisocyanate (I) chosen from aliphatic diisocyanates of formula: where R2 is lower alkyl, cycloalkyl, alkylidene or cycloalkylidene radicals, R1 and R3 are H or where R4 is alkyl, alkaryl, alkoxyaryl, aryl, aralkyl etc. The mixt. of polyols comprise 50 to 90% wt. of an -OH- modified rigid polyester (II) reacted with isocyanate and having mol. wt. 2500 to 5000 and no. of functional gps. >2.8, and 10 to 50% wt. an OH-contg. flexible polyester (III) having mol. wt. of 500 to 4,000 and having 2 functional gps. The equiv. ratio of NCO:OH is greater than 1:1 but less than 2.5:1. The coatings do not yellow, have good adhesive power and retain shine.
FR7022534A 1969-06-18 1970-06-18 Polyurethane-based coating compns Granted FR2046870A2 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US83449169A 1969-06-18 1969-06-18

Publications (2)

Publication Number Publication Date
FR2046870A2 true FR2046870A2 (en) 1971-03-12
FR2046870B2 FR2046870B2 (en) 1973-04-06

Family

ID=25267060

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7022534A Granted FR2046870A2 (en) 1969-06-18 1970-06-18 Polyurethane-based coating compns

Country Status (1)

Country Link
FR (1) FR2046870A2 (en)

Also Published As

Publication number Publication date
FR2046870B2 (en) 1973-04-06

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