US4327196A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method for producing expanded and cured polyester resin
Assignee: Uniroyal Chemical Co Inc
•
Filing: 1980-12-22
•
Granted: 1982-04-27
•
Expires: 2000-12-22
Abstract
Abstract Polyester resin is expanded and cured using mono-substituted sulfonyl hydrozide blowing agent, organic peroxide curative and certain metal promoters.
Inventors
- 👤 Robert W. West
- 👤 Paul E. Stott
- 👤 James Ahnemiller
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 14:45
CPC Classifications
C; C08; C08J; C08J9/00; C08J9/04; C08J9/06; C08J9/10; C08J9/104; C08J9/105; C08F; C08F299/00; C08F299/02; C08F299/04; C08F299/0442; C08F299/0464; C08J2367/00; C08J2367/06
Claims Analysis
Total Claims: 20
Claim 1
Independent Claim
183 words
A foamable and curable polyester composition consisting essentially of, all parts being by weight: (a) 100 parts liquid unsaturated polyester resin, (b) 2.7-32 millimoles mono-substituted sulfonyl hydrazide blowing agent for the resin having the structural formula RSO 2 NHNH 2 , wherein R is C 1 -C 12 alkyl, C 5 -C 6 cycloalkyl, C 7 -C 10 aralkyl, phenyl, naphthyl or phenyl substituted with halogen, C 1 -C 12 alkyl or C 1-C 12 alkoxy, (c) 0.001-2 parts organic metal salt primary promoter for the organic peroxide or organic hydroperoxide cure of the resin wherein the metal is selected from copper and vanadium, (d) 0-0.4 part organic metal salt secondary promoter for the organic peroxide or organic hydroperoxide cure of the resin, wherein the metal is selected from cadmium, calcium, chromium, cobalt, iron, lead, lithium, manganese, nickel, tin and zirconium, (e) 0-2 parts surface active agent, (f) 0-250 parts filler, (g) 0.5-2.5 parts organic peroxide or organic hydroperoxide per 100 parts (a) plus (f); provided that if the amount of (d) is zero the amount of (c) is at least 0.01 part.
Claim 2
Dependent Claim
183 words
A foamable and curable polyester composition consisting essentially of, all parts being by weight: (a) 100 parts liquid unsaturated polyester resin, (b) 2.7-32 millimoles mono-substituted sulfonyl hydrazide blowing agent for the resin having the structural formula RSO 2 NHNH 2 , wherein R is C 1 -C 12 alkyl, C 5 -C 6 cycloalkyl, C 7 -C 10 aralkyl, phenyl, naphthyl or phenyl substituted with halogen, C 1 -C 12 alkyl or C 1-C 12 alkoxy, (c) 0.001-2 parts organic metal salt primary promoter for the organic peroxide or organic hydroperoxide cure of the resin wherein the metal is selected from copper and vanadium, (d) 0-0.4 part organic metal salt secondary promoter for the organic peroxide or organic hydroperoxide cure of the resin, wherein the metal is selected from cadmium, calcium, chromium, cobalt, iron, lead, lithium, manganese, nickel, tin and zirconium, (e) 0-2 parts surface active agent, (f) 0-250 parts filler, (g) 0.5-2.5 parts organic peroxide or organic hydroperoxide per 100 parts (a) plus (f); provided that if the amount of (d) is zero the amount of (c) is at least 0.01 part.
Claim 3
Dependent Claim
44 words
The composition of claim 1 wherein the concentration of (b) is 5.4-27 millmoles, that of (c) is 0.001-1.5 parts, that of (d) is 0-0.25 part, that of (e) is 0.5-1.5 parts, that of (f) is 0-150 parts, and that of (g) is 1-2 parts.
Claim 4
Dependent Claim
44 words
The composition of claim 1 wherein the concentration of (b) is 11-22 millimoles, that of (c) is 0.01-1.0 parts, that of (d) is 0.01-0.2 part, that of (e) is 0.75-1.25 parts, that of (f) is 0-100 parts and that of (g) is 1-2 parts.
Claim 5
Dependent Claim
37 words
The composition of claim 1 wherein the concentration of (d) is zero, that of (c) is at least 0.01 part, that of (b) is at least 11 millimoles, and that of (g) is greater than 2 parts.
Claim 6
Dependent Claim
37 words
The composition of claim 1 wherein the concentration of (d) is zero, that of (b) is at least 5.5 millmoles, that of (g) is at least 1 part, and that of (c) is at least 0.5 part.
Claim 7
Dependent Claim
34 words
The composition of claim 1 wherein (b) is RSO 2 NHNH 2 wherein R is selected from C 2 -C 4 alkyl, benzyl, and phenyl substituted with C 1 -C 12 alkyl or chlorine.
Claim 8
Dependent Claim
10 words
The composition of claim 1 wherein (b) is toluenesulfonyl hydrazide.
Claim 9
Dependent Claim
17 words
The composition of claim 1 wherein (c) is selected from copper octoate, copper naphthenate and vanadium decanoate.
Claim 10
Dependent Claim
21 words
The composition of claim 1 wherein the metal of the organic metal salt (d) is selected from cobalt, nickel and iron.
Claim 11
Dependent Claim
10 words
The composition of claim 9 wherein said metal is cobalt.
Claim 12
Dependent Claim
19 words
The composition of claim 9 wherein said organic metal salt (d) is selected from cobalt naphthenate and cobalt octoate.
Claim 13
Dependent Claim
12 words
The composition of claim 1 wherein (e) is a silicone-alkylene glycol copolymer.
Claim 14
Dependent Claim
14 words
The composition of claim 1 wherein (f) is selected aluminum trihydrate and calcium carbonate.
Claim 15
Dependent Claim
12 words
The composition of claim 1 wherein (g) is methyl ethyl ketone peroxide.
Claim 16
Independent Claim
75 words
A method for preparing a foamed and cured polyester resin consisting essentially of providing a composition as in any of claims 1 to 14 by: (A) preparing a blend of 10-90 percent by weight of (a) with (b), (c), (d) and (f); (B) preparing a blend of correspondingly 90-10 percent by weight of (a) with (g); (C) mixing the blends resulting from steps (A) and (B) and exposing the mixture to foaming and curing conditions.
Claim 17
Dependent Claim
124 words
A composition useful for the preparation of cured and foamed polyester resin, all parts by weight, consisting essentially of (a) 10-100 parts polyester resin, (b) 2.7-32 millimoles mono-substituted sulfonyl hydrazide having the structural formula RSO 2 NHNH 2 , wherein R is C 1 -C 12 alkyl, C 5 -C 6 cycloalky, C 7 -C 10 aralkyl, phenyl, naphthyl, or phenyl substituted with halogen, C 1 -C 12 alkyl or C 1 -C 12 alkoxy, (c) 0.01-1 organic metal salt wherein the metal is selected from copper and vanadium, (d) 0-0.4 part organic metal salt wherein the metal is selected from cadmium, calcium, chromium, cobalt, iron, lead, lithium, manganese, nickel, tin and zirconium, (e) 0-2 parts surface active agent, and (f) 0-250 parts filler.
Claim 18
Dependent Claim
124 words
A composition useful for the preparation of cured and foamed polyester resin, all parts by weight, consisting essentially of (a) 10-100 parts polyester resin, (b) 2.7-32 millimoles mono-substituted sulfonyl hydrazide having the structural formula RSO 2 NHNH 2 , wherein R is C 1 -C 12 alkyl, C 5 -C 6 cycloalky, C 7 -C 10 aralkyl, phenyl, naphthyl, or phenyl substituted with halogen, C 1 -C 12 alkyl or C 1 -C 12 alkoxy, (c) 0.01-1 organic metal salt wherein the metal is selected from copper and vanadium, (d) 0-0.4 part organic metal salt wherein the metal is selected from cadmium, calcium, chromium, cobalt, iron, lead, lithium, manganese, nickel, tin and zirconium, (e) 0-2 parts surface active agent, and (f) 0-250 parts filler.
Claim 19
Dependent Claim
13 words
The composition of claim 16 wherein the amount of (d) is 0-0.25 part.
Claim 20
Dependent Claim
13 words
The composition of claim 10 wherein the amount of (d) is 0.01-0.2 part.
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) | 1985-04-26 | 1985-10-26 | 1986-04-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1989-04-26 | 1989-10-26 | 1990-04-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1993-04-26 | 1993-10-26 | 1994-04-27 | $7700.00 | Window Closed / Lapsed |