Acrylic Acid → Acrylic Acid

HRID 2078766Notes

Reaction equation

HRID 2078766 reaction equation
[C:1]([O:5][CH2:6][CH2:7][CH2:8][CH3:9])(=[O:4])[CH:2]=[CH2:3].[C:10]([OH:14])(=[O:13])[CH:11]=[CH2:12].[C:15]([O:19][CH2:20][CH2:21][OH:22])(=[O:18])[CH:16]=[CH2:17]>C(OCC)(=O)C>[C:1]([O-:5])(=[O:4])[CH:2]=[CH2:3].[C:1]([O:5][CH2:6][CH2:7][CH2:8][CH3:9])(=[O:4])[CH:2]=[CH2:3].[C:10]([OH:14])(=[O:13])[CH:11]=[CH2:12].[C:15]([O:19][CH2:20][CH2:21][OH:22])(=[O:18])[CH:16]=[CH2:17]

Participants

8

Reactant 3

HCID 6581Acrylic AcidHCID 8846Butyl AcrylateHCID 131652-Hydroxyethyl acrylate

Product 4

HCID 6581Acrylic AcidHCID 8846Butyl AcrylateHCID 131652-Hydroxyethyl acrylateHCID 25188Acrylate

Reagents, catalysts & solvents 1

HCID 8857Ethyl AcetateSolvent

Procedure

100 parts by weight of butyl acrylate, 5 parts by weight of acrylic acid, 0.075 parts by weight of 2-hydroxyethyl acrylate, 0.3 parts by weight of 2,2-azobisisobutyronitrile, and ethyl acetate were added to a reactor vessel equipped with a cooling tube, a nitrogen introducing tube, a thermometer, and a stirrer so that a solution was formed. While nitrogen gas was blown into the solution, the solution was then subjected to a polymerization reaction at 60° C. for 4 hours to give an acrylate copolymer of butyl acrylate, acrylic acid and 2-hydroxyethyl acrylate with a weight average molecular weight of 2,200,000. The acrylate copolymer was diluted with ethyl acetate to form a polymer solution (2-A) with a total solids content of 30% by weight. To the polymer solution (2-A) were then added 0.6 parts by weight of a crosslinking agent mainly composed of an isocyanate group-containing compound (“Coronate L” (trade name) manufactured by Nippon Polyurethane Industry Co., Ltd.) and 0.075 parts by weight of γ-glycidoxypropyltrimethoxysilane (“KBM-403” (trade name) manufactured by Shin-Etsu Chemical Co., Ltd.) in this order, based on 100 parts by weight of the acrylate copolymer, so that a polymer solution (2-B) was prepared.

Workup

  1. customequipped with a cooling tube, a nitrogen introducing tube
  2. customa thermometer, and a stirrer so that a solution was formed
  3. customthe solution was then subjected to a polymerization reaction at 60° C. for 4 hours

Sources & evidence

ORD record
ord-f043251ccd974c56ac3b621b3fd15f6a
Source dataset
uspto-grants-2011_04
Patent number
US07929086B2

Reaction notes

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