US3925296A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Foundry aggregate binders
Assignee: Occidental Chemical Corp
•
Filing: 1974-01-02
•
Granted: 1975-12-09
•
Expires: 1994-01-02
Abstract
Abstract Binders for foundry aggregates comprise (1) a phenolic compound and an organic polyisocyanate, (2) a substantially non-aqueous, organic solvent soluble condensation product of a furan alcohol and an aldehyde, a polyisocyanate and a phenolic compound, and (3) an organic polyisocyanate and a substantially non-aqueous, organic solvent soluble condensation product of a furan alcohol and an aldehyde. Said phenolic compound can be represented by the formula: WHEREIN X is oxygen or sulfur, y is an alkylidene radical, an arylene radical, an aryl bis alkylene radical, -S-, -S-S-, or n is 0 or 1, and R1 and R2 are hydrogen, alkyl of 1 to 6 carbon atoms or halogen. The binders are useful in preparing foundry aggregate compositions which can be cured at room temperature.
Inventors
- 👤 Jonathan A Stone
- 👤 Albert W Bluemle
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 10:34
CPC Classifications
C; C08; C08G; C08G18/00; C08G18/06; C08G18/28; C08G18/40; C08G18/54; C08G18/546; C08G18/30; C08G18/32; C08G18/3203; C08G18/3215; C08G18/38; C08G18/3855; C08G18/3863
Claims Analysis
Total Claims: 55
Claim 1
Independent Claim
28 words
A BINDER COMPOSITION FOR FOUNDRY AGGREGAES WHICH COMPRISES A SILUTION OF AN INERT SOLVENT AND A ROOM TEMPERATURE CURABLE COMPOSITION COMPRISING (1) AN ORGANIC POLYISOCYANATE OF THE FORMULA:
Claim 2
Dependent Claim
28 words
A BINDER COMPOSITION FOR FOUNDRY AGGREGAES WHICH COMPRISES A SILUTION OF AN INERT SOLVENT AND A ROOM TEMPERATURE CURABLE COMPOSITION COMPRISING (1) AN ORGANIC POLYISOCYANATE OF THE FORMULA:
Claim 3
Dependent Claim
12 words
The composition of claim 1 wherein the phenolic compound is a bisphenol.
Claim 4
Dependent Claim
11 words
The composition of claim 2 wherein the solvent is a ketone.
Claim 5
Dependent Claim
39 words
A foundry aggregate composition comprising a foundry aggregate and the composition of claim 1 wherein said composition is present in the proportions of about 1 to about 10 percent by weight based upon the weight of said foundry aggragate.
Claim 6
Dependent Claim
14 words
A composition which comprises the composition of claim 4 cured with a tertiary amine.
Claim 7
Dependent Claim
31 words
A composition comprising (1) an organic polyisocyanate and (2) a mixture of (A) a substantially non-aqueous organic solvent soluble condensation product of an aldehyde and a furan alcohol of the formula:
Claim 8
Dependent Claim
31 words
A composition comprising (1) an organic polyisocyanate and (2) a mixture of (A) a substantially non-aqueous organic solvent soluble condensation product of an aldehyde and a furan alcohol of the formula:
Claim 9
Dependent Claim
24 words
A composition which comprises a solution of an inert solvent and a room temperature curable composition comprising (1) an organic polyisocyanate of the formula:
Claim 10
Dependent Claim
24 words
A composition which comprises a solution of an inert solvent and a room temperature curable composition comprising (1) an organic polyisocyanate of the formula:
Claim 11
Dependent Claim
12 words
The composition of claim 7 wherein the phenolic compound is a bisphenol.
Claim 12
Dependent Claim
17 words
The composition of claim 8 wherein the solvent is a mixture of a ketone and aromatic solvent.
Claim 13
Dependent Claim
12 words
A binder composition for foundry aggregates comprising the composition of claim 7.
Claim 14
Dependent Claim
40 words
A foundry aggregate composition comprising a foundry aggregate and the binder composition of claim 7 wherein said binder is present in the proportion of about 1 to about 10 percent by weight based upon the weight of said foundry aggregate.
Claim 15
Dependent Claim
14 words
A composition which comprises the composition of claim 11 cured with a tertiary amine.
Claim 16
Dependent Claim
55 words
A process for bonding discrete inert, solid particles which comprises (1) coating said particles with a solution of a binder in an organic solvent, said binder selected from the group consisting of: (A) an organic polyisocyanate and a substantially non-aqueous organic solvent soluble condensation product of aN aldehyde and a furan alcohol of the formula:
Claim 17
Dependent Claim
55 words
A process for bonding discrete inert, solid particles which comprises (1) coating said particles with a solution of a binder in an organic solvent, said binder selected from the group consisting of: (A) an organic polyisocyanate and a substantially non-aqueous organic solvent soluble condensation product of aN aldehyde and a furan alcohol of the formula:
Claim 18
Dependent Claim
17 words
The process of claim 13 wherein the furan alcohol is furfuryl alcohol and the aldehyde is formaldehyde.
Claim 19
Dependent Claim
16 words
The process of claim 14 wherein the composition is cured by passing a tertiary amine therethrough.
Claim 20
Dependent Claim
18 words
The process of claim 15 wherein the organic polyisocyanate is a polyaryl polyisocyanate and the solvent is xylene.
Claim 21
Dependent Claim
12 words
The process of claim 13 wherein the phenolic compound is a bisphenol.
Claim 22
Dependent Claim
23 words
The process of claim 17 wherein the phenolic compound is Bisphenol A and the composition is cured by passing a tertiary amine therethrough.
Claim 23
Dependent Claim
24 words
The process of claim 18 wherein the organic polyisocyanate is a polyaryl polyisocyanate and the solvent is a mixture of xylene and cellosolve acetate.
Claim 24
Dependent Claim
11 words
The process of claim 18 wherein the tertiary amine is triethylamine
Claim 25
Dependent Claim
23 words
The process of claim 18 wherein the organic polyisocyanate is a polyaryl polyisocyanate and the solvent is a mixture of xylene and acetone.
Claim 26
Dependent Claim
17 words
The composition of claim 1 wherein m has an average value of about 0.6 to about 1.3.
Claim 27
Dependent Claim
17 words
The composition of claim 7 wherein m has an average value of about 0.6 to about 1.3.
Claim 28
Dependent Claim
21 words
A binder composition for foundry aggregates which comprises a room temperature curable composition comprising (1) an organic polyisocyanate of the formula:
Claim 29
Dependent Claim
21 words
A binder composition for foundry aggregates which comprises a room temperature curable composition comprising (1) an organic polyisocyanate of the formula:
Claim 30
Dependent Claim
25 words
The binder composition of claim 24 wherein the phenolic compound is a bisphenol and m has an average value of about 0.6 to about 1.3.
Claim 31
Dependent Claim
23 words
A foundry aggregate composition comprising a foundry aggregate and a room temperature curable binder composition comprising (1) an organic polyisocyanate of the formula:
Claim 32
Dependent Claim
23 words
A foundry aggregate composition comprising a foundry aggregate and a room temperature curable binder composition comprising (1) an organic polyisocyanate of the formula:
Claim 33
Dependent Claim
17 words
The composition of claim 26 wherein m has an average value of about 0.6 to about 1.3.
Claim 34
Dependent Claim
12 words
The composition of claim 26 wherein said phenolic compound is a bisphenol.
Claim 35
Dependent Claim
16 words
A foundry aggregate composition which comprises the composition of claim 10 cured with a tertiary amine.
Claim 36
Dependent Claim
23 words
The foundry aggregate composition of claim 26 wherein the phenolic compound is bisphenol A and the composition is cured by passing therethrough triethylamine.
Claim 37
Dependent Claim
44 words
A foundry aggregate composition comprising a foundry aggregate and a room temperature curable binder composition comprising (1) an organic polyisocyanate and (2) a mixture of A. a substantially non-aqueous organic solvent soluble condensation produce of an aldehyde and a furan alcohol of the formula:
Claim 38
Dependent Claim
44 words
A foundry aggregate composition comprising a foundry aggregate and a room temperature curable binder composition comprising (1) an organic polyisocyanate and (2) a mixture of A. a substantially non-aqueous organic solvent soluble condensation produce of an aldehyde and a furan alcohol of the formula:
Claim 39
Dependent Claim
12 words
The composition of claim 31 wherein the phenolic compound is a bisphenol.
Claim 40
Dependent Claim
17 words
The composition of claim 32 wherein the solvent is a mixture of ketone and an aromatic solvent.
Claim 41
Dependent Claim
23 words
A foundry aggregate composition comprising a foundry aggregate and a room temperature curable binder composition comprising (1) an organic polyisocyanate of the formula:
Claim 42
Dependent Claim
23 words
A foundry aggregate composition comprising a foundry aggregate and a room temperature curable binder composition comprising (1) an organic polyisocyanate of the formula:
Claim 43
Dependent Claim
12 words
The composition of claim 34 wherein the phenolic compound is a bisphenol.
Claim 44
Dependent Claim
36 words
The foundry aggregate composition comprising the composition of claim 34 wherein said furan alcohol is furfuryl alcohol, said aldehyde is formaldehyde, said phenolic compound is bisphenol A and the composition is cured by passing therethrough triethylamine.
Claim 45
Dependent Claim
12 words
The foundry aggregate composition of claim 34 cured with a tertiary amine.
Claim 46
Dependent Claim
28 words
A pRocess for bonding discrete inert, solid particles which comprises (1) coating said particles with a room temperature curable binder comprising: A. an organic polyisocyanate of the formula:
Claim 47
Dependent Claim
28 words
A pRocess for bonding discrete inert, solid particles which comprises (1) coating said particles with a room temperature curable binder comprising: A. an organic polyisocyanate of the formula:
Claim 48
Dependent Claim
17 words
The process of claim 38 wherein m has an average value of about 0.6 to about 1.3.
Claim 49
Dependent Claim
23 words
The process claim 38 wherein the phenolic compound is a bisphenol A and the composition is cured by passing a tertiary amine therethrough.
Claim 50
Dependent Claim
13 words
The process of claim 38 wherein the organic polyisocyanate is a polyaryl polyisocyanate.
Claim 51
Dependent Claim
11 words
The process of claim 40 wherein the tertiary amine is triethylamine.
Claim 52
Dependent Claim
33 words
A process for bonding discrete inert, solid particles which comprises (1) coating said particles with a room temperature curable binder selected from the group consisting of: A. An organic polyisocyanate of the formula:
Claim 53
Dependent Claim
33 words
A process for bonding discrete inert, solid particles which comprises (1) coating said particles with a room temperature curable binder selected from the group consisting of: A. An organic polyisocyanate of the formula:
Claim 54
Dependent Claim
17 words
The process of claim 43 wherein m has an average value of about 0.6 to about 1.3.
Claim 55
Dependent Claim
29 words
The process of claim 44 wherein said aldehyde is formaldehyde, said furan alcohol is furfuryl alcohol, said bisphenol is bisphenol-A, and said binder is cured by passing therethrough triethylamine.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1978-12-08 | 1979-06-09 | 1979-12-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-12-08 | 1983-06-09 | 1983-12-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-12-08 | 1987-06-09 | 1987-12-09 | $7700.00 | Window Closed / Lapsed |