Diphenylmethane diisocyanate → Urea Urethane

HRID 619540

反応式

HRID 619540 の反応式
C1C(CC2C=CC([N:14]=[C:15]=[O:16])=CC=2)=CC=C([N:17]=[C:18]=[O:19])C=1.C1C=C(CC2C=CC([N:33]=C=O)=CC=2)C(N=C=O)=CC=1.[CH2:39]([O:51]S(C1C=CC=CC=1)(=O)=O)[CH2:40]CCCCCCCCCC.[Na].FC(F)=C(F)F>O>[NH2:14][C:15]([O:51][CH2:39][CH3:40])=[O:16].[NH2:33][C:18]([NH2:17])=[O:19]

参加物

6

反応物 4

HCID 7570Diphenylmethane diisocyanate2 回HCID 8301TetrafluoroethyleneHCID 625932,4'-Diphenylmethane diisocyanateHCID 57371080Sodium dodecylbenzene sulphonate

生成物 1

HCID 21585015Urea Urethane

試薬・触媒・溶媒 1

HCID 962Water溶媒

実験手順

A urethane/urea prepolymer was prepared by reacting 70 percent by weight of a poly(propylene oxide) polyol VORANOL™ 2120 polyol (a trademark of The Dow Chemical Company) with 30 percent by weight of ISONATE™ 50 MDI (a trademark of The Dow Chemical Company; a 50:50 mixture of 4,4'-diisocyanatodiphenylmethane and 2,4'-diisocyanatodiphenylmethane). The following processes were carried out at 10° C. The prepolymer was fed continuously at a rate of 31.4 g/minute through a 1/2-inch (1.25 cm) stainless-steel tube fitted to one arm of a T. A 20-percent aqueous solution of a sodium dodecylbenzene sulfonate (RHODACAL™ DS-10, a trademark of Rhone Poulenc) was fed continuously at a rate of 4.7 g/minute through a 1/8-inch (0.31 cm) stainless-steel tubing fitted to the other arm of the T. The two streams were combined and passed through a static mixer to form a non-emulsified blend. The blend was then fed into a 1/2-inch (1.25 cm) stainless-steel tube fitted to one arm of a T attached to the input of a 70-mL centrifugal pump. Concurrently, water was pumped through a 1/8-inch (0.31 cm) tetrafluoroethylene tubing fitted to the other arm of the T, at the rate of 3.0 g/minute. The two streams were merged and mixed together under shear in the centrifugal pump operating at 650 rpm to form an HIPR emulsion.

後処理

  1. customwere carried out at 10° C
  2. customfitted to one arm of a T
  3. customfitted to the other arm of the T
  4. customto form a non-emulsified blend
  5. customfitted to one arm of a T
  6. customfitted to the other arm of the T, at the rate of 3.0 g/minute
  7. additionmixed together under shear in the centrifugal pump operating at 650 rpm
  8. customto form an HIPR emulsion

出典と根拠

ORDレコード
ord-a7644b2d606e47419bc5082c8ce1419d
出典データセット
uspto-grants-1999_09
特許番号
US05959027

関連ノート

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