US3844916A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Radiation curable non-gelled michael addition reaction products
Assignee: Stamicarbon BV
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Filing: 1972-09-18
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Granted: 1974-10-29
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Expires: 1992-09-18
Abstract
Abstract Radiation curable, non-gelled Michael addition reaction products are obtained by reacting an amine containing at least one amino hydrogen atom with a stoichiometric excess of ethylenic material comprising a polyacrylate. These reaction products contain unreacted acrylate groups, and the radiation cure is not inhibited by oxygen.
Inventors
- 👤 J Gaske
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 17:42
CPC Classifications
C; C08; C08G; C08G59/00; C08G59/14; C08G59/1494; C08F; C08F2/00; C08F2/46; C08F2/48; C08F2/50; C08F20/00; C08F20/02; C08F20/10; C08F20/20; C09; C09D; C09D11/00; C09D11/02; C09D11/10; C09D11/101; Y; Y10; Y10S; Y10S525/00; Y10S525/922
Claims Analysis
Total Claims: 13
Claim 1
Independent Claim
61 words
AN ULTRAVIOLET CURABLE COMPOSITION COMPRISING: (1) A RADIATION CURABLE LIQUID, NON-GELLED MICHAEL ADDITION REACTION PRODUCT OF AN ALIPHATICC AMINE CONTAINING A SINGLE AMINO HYDROGEN ATOM WITH A STOICHMETRIC EXCESS OF A POLYESTER OF ACRYLIC ACID WITH A POLYHYDRIC ALCOHOL, SAID AMINE CONSTITUTING AT LEAST 5 PERCENT OF SAID REACTION PRODUCT; AND (2) A PHOTOSENSITIZER RENDERING THE PRODUCT SENSITIVE TO ULTRAVIOLET RADIATION.
Claim 2
Dependent Claim
61 words
AN ULTRAVIOLET CURABLE COMPOSITION COMPRISING: (1) A RADIATION CURABLE LIQUID, NON-GELLED MICHAEL ADDITION REACTION PRODUCT OF AN ALIPHATICC AMINE CONTAINING A SINGLE AMINO HYDROGEN ATOM WITH A STOICHMETRIC EXCESS OF A POLYESTER OF ACRYLIC ACID WITH A POLYHYDRIC ALCOHOL, SAID AMINE CONSTITUTING AT LEAST 5 PERCENT OF SAID REACTION PRODUCT; AND (2) A PHOTOSENSITIZER RENDERING THE PRODUCT SENSITIVE TO ULTRAVIOLET RADIATION.
Claim 3
Dependent Claim
68 words
An ultraviolet curable composition comprising: (1) a radiation curable liquid, non-gelled Michael addition reaction product of an aliphatic amine containing a single amino hydrogen atom with a stoichiometric excess of a polyester of acrylic acid with a polyhydric alcohol, thus providing a reaction product containing unreacted acrylate groups, said amine constituting at least 0.5% of said composition; and (2) a photosensitizer rendering the product sensitive to ultraviolet radiation.
Claim 4
Dependent Claim
68 words
An ultraviolet curable composition comprising: (1) a radiation curable liquid, non-gelled Michael addition reaction product of an aliphatic amine containing a single amino hydrogen atom with a stoichiometric excess of a polyester of acrylic acid with a polyhydric alcohol, thus providing a reaction product containing unreacted acrylate groups, said amine constituting at least 0.5% of said composition; and (2) a photosensitizer rendering the product sensitive to ultraviolet radiation.
Claim 5
Dependent Claim
15 words
A composition as recited in claim 2 in which said aliphatic amine is diethyl amine.
Claim 6
Dependent Claim
70 words
An ultraviolet curable composition comprising: (1) a radiation curable liquid, non-gelled Michael addition reaction product of an aliphatic amine containing at least one amino hydrogen atom with a stoichiometric excess of a polyester of acrylic acid with a polyhydric alcohol, thus providing a reaction product containing unreacted acrylate groups, said amine constituting at least 0.5 percent of said composition; and (2) a photosensitizer rendering the product sensitive to ultraviolet radiation.
Claim 7
Dependent Claim
70 words
An ultraviolet curable composition comprising: (1) a radiation curable liquid, non-gelled Michael addition reaction product of an aliphatic amine containing at least one amino hydrogen atom with a stoichiometric excess of a polyester of acrylic acid with a polyhydric alcohol, thus providing a reaction product containing unreacted acrylate groups, said amine constituting at least 0.5 percent of said composition; and (2) a photosensitizer rendering the product sensitive to ultraviolet radiation.
Claim 8
Dependent Claim
27 words
A composition as recited in claim 4 in which said amine and said polyester are reacted at a temperature in excess of 48*C to insure complete reaction.
Claim 9
Dependent Claim
28 words
A composition as recited in claim 2 in which said amine is utilized in an amount of at least 1 percent, based on the weight of the composition.
Claim 10
Dependent Claim
27 words
A composition as recited in claim 2 in which said polyester is an hydroxy functional polyester with acrylic acid containing at least two acrylate groups per molecule.
Claim 11
Dependent Claim
71 words
An ultraviolet curable ink comprising a radiation curable liquid, non-gelled Michael addition reaction product of an aliphatic amine containing a single amino hydrogen atom with a stoichiometric excess of a polyester of acrylic acid with a polyhydric alcohol, said amine constituting at least 5 percent of said reaction product, said liquid reaction product having added thereto a photosensitizer rendering the product sensitive to ultraviolet radiation and a non-opaque pigment or dye.
Claim 12
Dependent Claim
71 words
An ultraviolet curable ink comprising a radiation curable liquid, non-gelled Michael addition reaction product of an aliphatic amine containing a single amino hydrogen atom with a stoichiometric excess of a polyester of acrylic acid with a polyhydric alcohol, said amine constituting at least 5 percent of said reaction product, said liquid reaction product having added thereto a photosensitizer rendering the product sensitive to ultraviolet radiation and a non-opaque pigment or dye.
Claim 13
Dependent Claim
31 words
A composition as recited in claim 2 in which said photosensitizer is selected from the group of benzophenone, acetophenone, benzoin and the methyl, butyl and isobutyl ethers of benzoin, and 10-thioxanthenone.
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) | 1977-10-28 | 1978-04-29 | 1978-10-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-10-28 | 1982-04-29 | 1982-10-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-10-28 | 1986-04-29 | 1986-10-29 | $7700.00 | Window Closed / Lapsed |