Propylene glycol methyl ether acetate → HCID 24755566, compound

HRID 1159475Notes

Reaction equation

HRID 1159475 reaction equation
[C:1](OC(C)COC)(=O)C.C([O-])(=O)CCCCCCCCCCC.C([O-])(=O)CCCCCCCCCCC.C([Sn+2]CCCC)CCC.O=C=NC1CC(C)(C)[CH2:57][C:52]([CH3:62])([CH2:53][N:54]=[C:55]=O)[CH2:51]1.[C:63]([O:66][CH2:67][CH2:68][CH2:69]C)(=[O:65])[CH3:64]>C(OCC)(=O)C.C(O)(=O)C>[CH3:1][C:68]1([CH3:69])[CH2:55][N:54]2[C:63]([CH3:64])([O:65][CH2:51][C:52]([CH3:62])([CH3:57])[CH2:53]2)[O:66][CH2:67]1

Participants

7

Reactant 4

HCID 7946Propylene glycol methyl ether acetateHCID 31272Butyl AcetateHCID 169132Isophorone diisocyanateHCID 9809426Di-n-butyldilauryltin

Product 1

HCID 24755566HCID 24755566, compound

Reagents, catalysts & solvents 2

HCID 176Acetic AcidSolventHCID 8857Ethyl AcetateSolvent

Procedure

In a glass jar 8.48 grams of 3,3,6,6,8a-pentamethyl-tetrahydro-1,8-dioxa-4a-aza-napthalenes (as prepared in Example 1) was combined with 2.84 grams of propylene glycol monomethylether acetate, 0.92 grams of a 2% dibutyl tin dilaurate solution in ethyl acetate, and 0.11 grams of a BYK 306 and 0.04 grams of Byk 361. To this was added 68.66 grams of a solution of 32.93 grams of Desmodur® XP 2410 (hexamethylene diisocyaante trimer available from Bayer), 31.38 grams of Desmodur® Z4470BA (isophorone diisocyanate trimer available from Bayer) and 4.35 grams n-butyl acetate. This mixture was stirred and then 0.36 grams of acetic acid was added and the mixture and stirred. The mixture was drawndown to give coatings of ˜4 mils in thickness. The coating was baked at 140° F. for 30 minutes. At one day the coating had a Fischercope hardness of 90 N/mm2 and a swell ratio of 1.70. At 30 days the coating had a Fischercope hardness of 158 N/mm2, a Tg (at the midpoint) of 59° C. and a gel fraction of 96%.

Workup

  1. stirringthe mixture and stirred
  2. customto give coatings of ˜4 mils in thickness
  3. waitAt one day the coating had
  4. waitAt 30 days the coating had
  5. customof 59° C.

Sources & evidence

ORD record
ord-0e3f54888b6f43188aaf4c1ba63f766d
Source dataset
uspto-grants-2010_10
Patent number
US07812173B2

Reaction notes

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