Ammonia → HCID 131727580, compound

HRID 1950659Notes

Reaction equation

HRID 1950659 reaction equation
[OH:1][CH:2]1[CH2:7][CH2:6][CH2:5][CH2:4][O:3]1.[NH2:8][C:9]([NH2:11])=[O:10].[NH3:12]>O>[OH:1][CH:2]1[CH2:7][CH2:6][CH2:5][CH2:4][O:3]1.[NH2:8][C:9]([NH2:11])=[O:10].[NH3:12]

Participants

4

Reactant 2

HCID 222Ammonia3×HCID 131727581HCID 131727581, compound2×

Product 1

HCID 131727580HCID 131727580, compound

Reagents, catalysts & solvents 1

HCID 962WaterSolvent

Conditions

Temperature
107.5 fahrenheit

Procedure

A first pad bath is filled with a treatment solution containing 150 pounds of THPOH-urea precondensate (Guardex FR-TP, 75% solids from Guardex, Inc. Thomasville, N.C.), 9 pounds of wetting agent (Guardex WT-TPS) and 140 pounds of water. A second pad bath is filled with a treatment solution of identical composition to the first pad bath. Filament rayon warp knit fabric (7.0 ounces per square yard) is padded through the two pad baths in succession attaining 27.4% solids add-on by weight after the second dip-squeeze treatment. The impregnated fabric is exposed to gaseous ammonia by passing through two successive gaseous ammonia chambers. Chamber temperatures were maintained at 85 to 130° F. to assure complete reaction of the THPOH/urea precondensate with ammonia, forming an insoluble THPOH/urea-NH3 polymer within the yarns forming the fabric. The treated fabric is then afterwashed open-width by passing through one or more baths containing peroxide to insolubize the phosphorus-containing flame retardant. Next, the fabric is neutralized. The fabric is then placed on a tenter frame and dried.

Workup

  1. additionA first pad bath is filled with a treatment solution
  2. additionA second pad bath is filled with a treatment solution of identical composition to the first pad bath

Sources & evidence

ORD record
ord-3125066732f549f6b62a47bf2c7e5d73
Source dataset
uspto-grants-2013_03
Patent number
USRE044108E1

Reaction notes

Loading…