US4085076A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Carbohydrate-based condensation resin
Assignee: Unilever Bestfoods North America
•
Filing: 1977-06-21
•
Granted: 1978-04-18
•
Expires: 1997-06-21
Abstract
Abstract A carbohydrate-phenolic resol resin and a process for production of same wherein an aldose saccharide, preferably a hexose, is reacted with a phenolic compound and urea in the presence of an acid catalyst to form a liquid fusible resin which is reacted with a lower aliphatic aldehyde in the presence of a basic catalyst to form said resol resin.
Inventors
- 👤 John P. Gibbons
- 👤 Lawrence Wondolowski
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 06:41
CPC Classifications
C; C08; C08G; C08G8/00; C08G8/04; C08G8/06; C08G14/00; C08G14/02; C08G14/04; C08G14/06
Claims Analysis
Total Claims: 15
Claim 1
Independent Claim
63 words
A process for producing a carbohydrate-phenolic resol resin which comprises the steps of: a. reacting in the presence of an acid catalyst the following ingredients: 1. an aldose saccharide 2. a phenolic compound having the formula ##STR7## wherein R is selected from the group consisting of C 1 to C 3 alkyl, C 1 to C 3 alkoxy, halogen, hydroxy and hydrogen, and
Claim 2
Dependent Claim
63 words
A process for producing a carbohydrate-phenolic resol resin which comprises the steps of: a. reacting in the presence of an acid catalyst the following ingredients: 1. an aldose saccharide 2. a phenolic compound having the formula ##STR7## wherein R is selected from the group consisting of C 1 to C 3 alkyl, C 1 to C 3 alkoxy, halogen, hydroxy and hydrogen, and
Claim 3
Dependent Claim
45 words
urea to form a liquid resin wherein the water produced in condensation is less than about 5 moles per mole of aldose; and b. reacting said liquid resin with a lower aliphatic aldehyde in the presence of a basic catalyst to form said resol resin.
Claim 4
Dependent Claim
45 words
urea to form a liquid resin wherein the water produced in condensation is less than about 5 moles per mole of aldose; and b. reacting said liquid resin with a lower aliphatic aldehyde in the presence of a basic catalyst to form said resol resin.
Claim 5
Dependent Claim
14 words
A process as defined in claim 1 wherein the aldose saccharide is a hexose.
Claim 6
Dependent Claim
13 words
A process as defined in claim 1 wherein the phenolic compound is phenol.
Claim 7
Dependent Claim
15 words
A process as defined in claim 1 wherein the aldose saccharide is derived from starch.
Claim 8
Dependent Claim
33 words
A process as defined in claim 1 wherein the phenolic compound is employed in an amount within the range of 0.1 to 1.5 moles of phenolic compound for each mole of aldose unit.
Claim 9
Dependent Claim
28 words
A process as defined in claim 1 wherein the urea is employed in an amount from 0.1 to 5 moles of urea for each mole of aldose unit.
Claim 10
Dependent Claim
30 words
A process as defined in claim 1 wherein the aliphatic aldehyde is employed in an amount ranging from about 2 moles to about 4 moles for each mole of phenol.
Claim 11
Dependent Claim
16 words
A process as defined in claim 1 wherein the acid catalyst is a strong mineral acid.
Claim 12
Dependent Claim
14 words
A process as defined in claim 1 wherein the alkaline catalyst is calcium hydroxide.
Claim 13
Dependent Claim
13 words
A process as defined in claim 1 wherein the aliphatic aldehyde is formaldehyde.
Claim 14
Dependent Claim
12 words
A carbohydrate-phenolic resol resin produced by the process defined in claim 1.
Claim 15
Dependent Claim
22 words
A process as defined in claim 1 wherein the aldose saccharide is reacted with urea prior to contact with the phenolic compound.
References Cited (Backward Citations)
US1820816A
Cited
US1801052A
Cited
US1815930A
Cited
US1593342A
Cited
US2555058A
Cited
US2341907A
Cited
US2362086A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1981-04-17 | 1981-10-17 | 1982-04-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1985-04-17 | 1985-10-17 | 1986-04-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1989-04-17 | 1989-10-17 | 1990-04-18 | $7700.00 | Window Closed / Lapsed |