US4385159A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Dimethacrylic acid esters of diemethyloltetrahydrofuran and its derivatives, their preparation and application as adhesives
Assignee: Henkel AG and Co KGaA
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Filing: 1982-03-05
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Granted: 1983-05-24
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Expires: 2002-03-05
Abstract
Abstract The present invention relates to dimethacrylic acid esters of dimethyloltetrahydrofuran and its derivatives having the formula: ##STR1## wherein A and A' individually have the formula: ##STR2## wherein B is a member selected from the group consisting of CH 3 and H, n is an integer from 0 to 5, m is 0 or 1, and p is 0 or 1; their process of preparation and their use as adhesive components of anaerobic adhesive compositions.
Inventors
- 👤 Werner Gruber
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 17:44
CPC Classifications
C; C07; C07D; C07D307/00; C07D307/02; C07D307/04; C07D307/10; C07D307/12; C09; C09J; C09J4/00
Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
89 words
An adhesive composition hardening under exclusion of oxygen containing from about 10% to about 98.5% by weight of at least one dimethacrylic acid ester of dimethyloltetrahydrofuran and its derivatives having the formula: ##STR15## wherein A and A' individually have the formula: ##STR16## wherein B is a member selected from the group consisting of CH 3 and H, n is an integer from 0 to 5, m is 0 or 1, and p is 0 or 1, and the remainder customary ingredients of adhesive compositions hardening under exclusion of oxygen.
Claim 2
Dependent Claim
89 words
An adhesive composition hardening under exclusion of oxygen containing from about 10% to about 98.5% by weight of at least one dimethacrylic acid ester of dimethyloltetrahydrofuran and its derivatives having the formula: ##STR15## wherein A and A' individually have the formula: ##STR16## wherein B is a member selected from the group consisting of CH 3 and H, n is an integer from 0 to 5, m is 0 or 1, and p is 0 or 1, and the remainder customary ingredients of adhesive compositions hardening under exclusion of oxygen.
Claim 3
Dependent Claim
16 words
The adhesive composition of claim 1 wherein said customary ingredients of adhesive compositions includes additional methacrylates.
Claim 4
Dependent Claim
23 words
The adhesive composition of claim 2 wherein said additional methacrylates are members selected from the group consisting of difunctional methacrylates and monofunctional methacrylates.
Claim 5
Dependent Claim
27 words
The adhesive composition of claim 2 wherein said additional methacrylates are present in an about 1:1 ratio with said at least one dimethacrylic acid ester of dimethyloltetrahydrofuran.
Claim 6
Dependent Claim
44 words
The adhesive composition of claim 4 wherein said additional methacrylates are members selected from the group consisting of ethylene glycol dimethacrylate, triethylene glycol dimethacrylate, polyethylene glycol dimethacrylate, hydroxyethyl methacrylate, hydroxypropyl methacrylate, the dimethacrylate of dimethyloltricyclodecane, ethylhexyl methacrylate, cyclohexyl methacrylate, 5,6-dihydrodicyclopentadienyl methacrylate, and tetrahydrofurfuryl methacrylate.
Claim 7
Dependent Claim
23 words
The adhesive composition of claim 1 wherein said customary ingredients of adhesive compositions includes from 0.1% to 20% by weight of peroxide initiators.
Claim 8
Dependent Claim
22 words
The adhesive composition of claim 6 wherein said peroxide initiators are present in an amount of from 1% to 10% by weight.
Claim 9
Dependent Claim
27 words
The adhesive composition of claim 1 wherein said customary ingredients of adhesive compositions includes from 0.1% to 2.5% by weight of at least one organic amine accelerator.
Claim 10
Dependent Claim
27 words
The adhesive composition of claim 1 wherein said customary ingredients of adhesive compositions includes from 100 to 1,000 ppm, based on the polymerizable components, of a stabilizer.
Claim 11
Dependent Claim
20 words
The adhesive composition of claim 9 wherein said stabilizer is present in an amount of from 200 to 500 ppm.
Claim 12
Dependent Claim
30 words
The adhesive composition of claim 1 wherein said customary ingredients of adhesive compositions includes from 0.1% to 20% by weight of plasticizers, thickening agents and pigments in customary adhesive amounts.
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) | 1986-05-23 | 1986-11-22 | 1987-05-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1990-05-23 | 1990-11-22 | 1991-05-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1994-05-23 | 1994-11-22 | 1995-05-24 | $7700.00 | Window Closed / Lapsed |