Trimethylolpropane → Dimethylolpropionic acid

HRID 1910363Notes

Reaction equation

HRID 1910363 reaction equation
C1CC(N)(C(O)=[O:6])C1.[OH-].[K+].C1NC1.[CH2:14]([C:16]([CH2:21][OH:22])([CH2:19][OH:20])[CH2:17]C)[OH:15]>>[CH2:14]([C:16]([CH2:21][OH:22])([CH3:17])[C:19]([OH:6])=[O:20])[OH:15]

Participants

5

Reactant 4

HCID 6510TrimethylolpropaneHCID 9033AziridineHCID 14797Potassium Hydroxide8×HCID 896431-Aminocyclobutanecarboxylic acid2×

Product 1

HCID 78501Dimethylolpropionic acid

Procedure

Examples of polyester polyols selected for the ACBC layer, and, in embodiments, for reaction with the polyisocyanate are known, and can be obtained from Perstorp Specialty Chemicals (Perstorp, Sweden) as BOLTORN® P500 (OH value of 560 to 630 milligram KOH/gram, Mw (GPC)=1,800), P1000 (OH value of 430 to 490 mg KOH/grams, Mw (GPC)=1,500), H20 (OH value of 490 to 520 mg KOH/grams, Mw (GPC)=2,100, Tg=25° C.), H2003 (OH value of 280 to 310 mg KOH/grams, Mw (GPC)=2,500, Tg=−5° C.), H2004 (OH value of 110 to 130 mg KOH/grams, Mw (GPC)=3,200, Tg=−35° C.), H30 (OH value of 490 to 510 mg KOH/grams, Mw (GPC)=3,500, Tg=35° C.), H40 (OH value of 470 to 500 mg KOH/grams, Mw (GPC)=5,100, Tg=40° C.), U3000 (OH value of 77 mg KOH/grams, Mw (GPC)=6,500), and W3000 (OH value of 45 mg KOH/grams, Mw (GPC)=10,000). In embodiments, a dendritic polyester polyol selected for the ACBC layer formation can be formed by, for example, the polymerization of a core such as trimethylolpropane and branches extending therefrom of 2,2-dimethylol propionic acid (Bis-MPA), and which resulting products can be referred to as hydroxyl-functional dendritic polyesters.

Workup

  1. customcan be formed by, for example

Sources & evidence

ORD record
ord-760094bfda334ad4b5ec7b5c93bf6268
Source dataset
uspto-grants-2013_12
Patent number
US08603709B2

Reaction notes

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