US3912652A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Defoaming composition useful in jet dyeing
Assignee: Dow Silicones Corp
•
Filing: 1973-12-17
•
Granted: 1975-10-14
•
Expires: 1993-12-17
Abstract
Abstract A composition suitable for use as a defoamer in dyeing operations is made by mixing (1) 80 to 96 percent by weight of a block copolymer of dimethyl siloxane and a polyalkylene oxide and (2) 4 to 20 percent by weight of a condensation product of (B) a copolymer of (CH3)3SiO.5 units and SiO2 units in a mol ratio of 0.4:1 to 1.2:1 and (C) an alkylene oxide in amount of from 15 to 50 weight percent (B) and 50 to 85 weight percent (C). These formulations are particularly useful in jet dyeing operations.
Inventors
- 👤 Joseph A Colquhoun
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 12:14
CPC Classifications
C; C08; C08G; C08G77/00; C08G77/42; C08G77/46; B; B01; B01D; B01D19/00; B01D19/02; B01D19/04; B01D19/0404; B01D19/0409; B01D19/0413; C08K; C08K5/00; C08K5/04; C08K5/15; C08K5/151
Claims Analysis
Total Claims: 13
Claim 1
Independent Claim
9 words
A COMPOSITION SUITABLE FOR DEFOAMING AQUEOUS MEDIA CONSISTING OF
Claim 2
Dependent Claim
9 words
A COMPOSITION SUITABLE FOR DEFOAMING AQUEOUS MEDIA CONSISTING OF
Claim 3
Dependent Claim
107 words
FROM 80 TO 96 PERCENT BY WEIGHT OF A WATER SOLUABLE COPOLYMER OF THE GROUP CONSISTING OF RASI (OSIME2)N(OSIMEG)M3S2ME2G 4-A, RASI (OSIME2)N(OSIMEG)MOSIME3 4-A, GME2S2 (OSIME2)MOSEMIGE2G AND ME3SI (OSIME2)N(OSIMEG) IN WHICH ME IS THE METHYL RADICAL, N HAS AN AVERAGE VALUE FROM 6 TO 400, M HAS AN AVERAGE VALUE FROM 3 TO 30, A HAS A VALUE FROM 0 TO 1, R IS A HYDROCARBON RADICAL FREE OF ALIPHATIC UNSATURATION OF FROM 1 TO 10 CARBON ATOMS, G IS A RADICAL OF THE FORMULA - D(OR'')YOA IN WHICH D IS AN ALKYLENE RADICAL OF 2 TO 10 CARBON ATOMS, R'' IS -CH2CH2- OR A COMBINATION OF -CH2CHIAND
Claim 4
Dependent Claim
107 words
FROM 80 TO 96 PERCENT BY WEIGHT OF A WATER SOLUABLE COPOLYMER OF THE GROUP CONSISTING OF RASI (OSIME2)N(OSIMEG)M3S2ME2G 4-A, RASI (OSIME2)N(OSIMEG)MOSIME3 4-A, GME2S2 (OSIME2)MOSEMIGE2G AND ME3SI (OSIME2)N(OSIMEG) IN WHICH ME IS THE METHYL RADICAL, N HAS AN AVERAGE VALUE FROM 6 TO 400, M HAS AN AVERAGE VALUE FROM 3 TO 30, A HAS A VALUE FROM 0 TO 1, R IS A HYDROCARBON RADICAL FREE OF ALIPHATIC UNSATURATION OF FROM 1 TO 10 CARBON ATOMS, G IS A RADICAL OF THE FORMULA - D(OR'')YOA IN WHICH D IS AN ALKYLENE RADICAL OF 2 TO 10 CARBON ATOMS, R'' IS -CH2CH2- OR A COMBINATION OF -CH2CHIAND
Claim 5
Dependent Claim
79 words
FROM 4 TO 20 PERCENT BY WEIGHT OF A COPOLYMER COMPATIBLE WITH (1) PREPARED BY CONDENSING B. A SILOXANE CONTAINING SIOH GROUPS AND BEING ESSENTIALLY OF ME3SIO.5 AND SIO2 UNITS IN THE MOL RATIO OF FROM 0.4:1 TO 1.2:1 AND C. A POLYMER OF THE GROUP CONSISTING OF POLYETHYLENE OXIDE, POLYPROPYLENE OXIDE, AND COPOLYMERS THEREOF IN (2) THE WEIGHT RATIO OF (B) TO (C) BEING IN THE RANGE 15 TO 50 PERCENT (B) TO 50 TO 85 PERCENT (C).
Claim 6
Dependent Claim
79 words
FROM 4 TO 20 PERCENT BY WEIGHT OF A COPOLYMER COMPATIBLE WITH (1) PREPARED BY CONDENSING B. A SILOXANE CONTAINING SIOH GROUPS AND BEING ESSENTIALLY OF ME3SIO.5 AND SIO2 UNITS IN THE MOL RATIO OF FROM 0.4:1 TO 1.2:1 AND C. A POLYMER OF THE GROUP CONSISTING OF POLYETHYLENE OXIDE, POLYPROPYLENE OXIDE, AND COPOLYMERS THEREOF IN (2) THE WEIGHT RATIO OF (B) TO (C) BEING IN THE RANGE 15 TO 50 PERCENT (B) TO 50 TO 85 PERCENT (C).
Claim 7
Dependent Claim
80 words
from 4 to 20 percent By weight of a copolymer compatible with (1) prepared by condensing B. a siloxane containing SiOH groups and being essentially of Me3SiO.5 and SiO2 units in the mol ratio of from 0.4:1 to 1.2: 1 and C. a polyether of the group consisting of polyethylene oxide, polypropylene oxide, and copolymers thereof in (2) the weight ratio of (B) to (C) being in the range 15 to 50 percent (B) to 50 to 85 percent (C).
Claim 8
Dependent Claim
80 words
from 4 to 20 percent By weight of a copolymer compatible with (1) prepared by condensing B. a siloxane containing SiOH groups and being essentially of Me3SiO.5 and SiO2 units in the mol ratio of from 0.4:1 to 1.2: 1 and C. a polyether of the group consisting of polyethylene oxide, polypropylene oxide, and copolymers thereof in (2) the weight ratio of (B) to (C) being in the range 15 to 50 percent (B) to 50 to 85 percent (C).
Claim 9
Dependent Claim
22 words
The composition of claim 1 in which G is present in amount of from 50 to 85 percent by weight of (1).
Claim 10
Dependent Claim
18 words
The composition of claim 1 in which n is 100 to 200 and m is 4 to 20.
Claim 11
Dependent Claim
17 words
The composition of claim 1 in which (2) has a solubility factor of 14 to 17 inclusive.
Claim 12
Dependent Claim
17 words
The composition of claim 2 in which (2) has a solubility factor of 14 to 17 inclusive.
Claim 13
Dependent Claim
17 words
The composition of claim 3 in which (2) has a solubility factor of 14 to 17 inclusive.
References Cited (Backward Citations)
US3700400A
Cited
US3784479A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1978-10-13 | 1979-04-14 | 1979-10-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-10-13 | 1983-04-14 | 1983-10-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-10-13 | 1987-04-14 | 1987-10-14 | $7700.00 | Window Closed / Lapsed |