Patent US3999723A successfully refreshed from Google Patents.
US4020035A
Expired / Lapsed
US
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Resin compositions
Assignee: Solvay Solutions UK Ltd
•
Filing: 1974-09-16
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Granted: 1977-04-26
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Expires: 1994-09-16
Abstract
Abstract Compositions of at least 50% by weight of a resin having repeat units of formula <IMAGE> WHEREIN Arx is a divalent or trivalent aromatic hydrocarbyl group, optionally substituted, Ar is a phenol residue, and n is 0 or 1 and up to 50% (based on the total weight of resins) of a phenol/aldehyde novolac or resole resin can be cured to form thermoset resins useful in mouldings, laminates, cements and coatings.
Inventors
- 👤 Alfred Gerald Edwards
- 👤 Glyn Islwyn Harris
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 15:58
CPC Classifications
C; C08; C08L; C08L65/00
Claims Analysis
Total Claims: 28
Claim 1
Independent Claim
155 words
A composition comprising at least 50% by weight (based on the total weight of resin components (a) and (b)) of resin component (a), a resin haing repeating units of the formula ##STR5## wherein Ar x is a divalent or trivalent aromatic hydrocarbyl radical selected from the group consisting of aromatic hydrocarbyl groups and aromatic hydrocarbyl groups having at least one substituent selected from the groups consisting of chlorine and fluorine atoms and methyl groups, and Ar is the residue formed by removal of two nuclear hydrogen atoms from a phenolic compound with 1 - 3 hydroxyl groups and at least two nuclear hydrogen atoms and n is 0 or 1, and 1 to 50% by weight (based on the total weight of resin components (a) and (b)) of resin component (b), a resin formed by reaction of a phenolic compound and an aldehyde and selected from the group consisting of novolac resins and resole resins.
Claim 2
Dependent Claim
155 words
A composition comprising at least 50% by weight (based on the total weight of resin components (a) and (b)) of resin component (a), a resin haing repeating units of the formula ##STR5## wherein Ar x is a divalent or trivalent aromatic hydrocarbyl radical selected from the group consisting of aromatic hydrocarbyl groups and aromatic hydrocarbyl groups having at least one substituent selected from the groups consisting of chlorine and fluorine atoms and methyl groups, and Ar is the residue formed by removal of two nuclear hydrogen atoms from a phenolic compound with 1 - 3 hydroxyl groups and at least two nuclear hydrogen atoms and n is 0 or 1, and 1 to 50% by weight (based on the total weight of resin components (a) and (b)) of resin component (b), a resin formed by reaction of a phenolic compound and an aldehyde and selected from the group consisting of novolac resins and resole resins.
Claim 3
Dependent Claim
26 words
A composition according to claim 1 comprising 70 - 90% by weight of resin component (a) and 30 - 10% by weight of resin component (b).
Claim 4
Dependent Claim
24 words
A composition according to claim 2 comprising about 75% by weight of resin component (a) and about 25% by weight of resin component (b).
Claim 5
Dependent Claim
15 words
A composition according to claim 1 wherein the resin component (b) is a novolac resin.
Claim 6
Dependent Claim
29 words
A composition according to claim 4 which also comprises 8 - 20% by weight of hexamethylene tetramine (based on the total weight of resin component (a) and novolac resin).
Claim 7
Dependent Claim
15 words
A composition according to claim 1 wherein the resin component (b) is a resole resin.
Claim 8
Dependent Claim
25 words
A composition according to claim 6 which also comprises 8 - 20% by weight of hexamethylene tetramine based on the weight of resin component (a).
Claim 9
Dependent Claim
29 words
A composition according to claim 5 wherein the novolac resin is formed by reacting phenol and formaldehyde in a molar ratio of 1.25 : 1 to 1.05 : 1.
Claim 10
Dependent Claim
36 words
A composition according to claim 6 wherein the resole resin is formed by reacting phenol and formaldehyde in the molar ratio of 0.75 : 1 to 0.95 : 1 in the presence of a basic catalyst.
Claim 11
Dependent Claim
36 words
A composition according to claim 7 wherein the resole resin is formed by reacting phenol and formaldehyde in the molar ratio of 0.75 : 1 to 0.95 : 1 in the presence of a basic catalyst.
Claim 12
Dependent Claim
92 words
A composition according to claim 1 wherein resin component (a) is prepared by reacting an aralkylene halide or ether of formula Ar x (CH 2 X) a wherein Ar x is a divalent or trivalent aromatic hydrocarbyl group, a is 2 or 3 and X represents a chlorine, bromine or iodine atom or an alkoxy group of formula OR, in which R is an alkyl group of 1 to 5 carbon atoms, with the phenolic compound in an amount of at least 1.3 mole phenolic compound per mole of halide or ether.
Claim 13
Dependent Claim
20 words
A composition according to claim 11 wherein resin component (a) is prepared by reacting the aralkylene ether with the phenol.
Claim 14
Dependent Claim
14 words
A composition according to claim 11 wherein Ar x represents a mononuclear aromatic group.
Claim 15
Dependent Claim
15 words
A composition according to claim 12 wherein the aralkylene either is a xylylene dimethyl ether.
Claim 16
Dependent Claim
32 words
A composition according to claim 11 wherein the phenolic compound used to form resin component (a) is selected from the group consisting of phenol, resorcinol, catechol and 4-methyl catechol and mixtures thereof.
Claim 17
Dependent Claim
19 words
A composition according to claim 1 which also comprises an organic solvent for the resin components (a) and (b).
Claim 18
Dependent Claim
12 words
A composition according to claim 1 which also comprises an inorganic filler.
Claim 19
Dependent Claim
29 words
A composition according to claim 17 wherein the filler is at least one of asbestos flour, graphite, mica, chopped glass strands, silica, asbestos and glass fabrics and glass mats.
Claim 20
Dependent Claim
14 words
A composition according to claim 1 wherein Ar x represents an aromatic hydrocarbyl group.
Claim 21
Dependent Claim
32 words
A cured product obtained by curing a composition as claimed in claim 1 with 5 - 20% by weight (based on the weight of resin components (a) and (b)) of hexamethylene tetramine.
Claim 22
Dependent Claim
23 words
A cured product obtained by heating a composition as claimed in claim 1 in which resin component (b) is a phenol/aldehyde resole resin.
Claim 23
Dependent Claim
129 words
A composition according to claim 5 which comprises 10 - 40% (based on the total resin weight) of a novolac resin from formaldehyde and a phenol, 90 - 60% (based on the total resin weight) of an aralkylene-phenol resin made by reacting an aralkylene ether or halide of formula Ar x (CH 2 X) a where X represents a chlorine, bromine or iodine atom or an alkoxy group of formula OR, in which R is an alkyl group of 1 to 5 carbon atoms, Ar x is a mononuclear aromatic hydrocarbyl radical and a is 2 or 3, with 1.4 to 2.5 moles (per mole of ether or halide) of the phenolic compound of formula ArOH, and 8 - 20% of hexamethylene tetramine (based on the total resin weight).
Claim 24
Dependent Claim
132 words
A composition according to claim 7 which comprises 10 - 40% (based on the total resin weight) of a resole resin from formaldehyde and a phenol, 90 - 60% (based on the total resin weight) of an aralkylene phenol resin made by reacting an aralkylene ether or halide of formula Ar x (CH 2 X) a where X represents a chlorine, bromine or iodine atom or an alkoxy group of formula OR, in which R is an alkyl group of 1 to 5 carbon atoms, Ar x is a mononuclear aromatic hydrocarbyl radical and a is 2 or 3, with 1.4 to 2.5 moles (per mole of ether or halide) of the phenolic compound of formula ArOH, and 8 - 20% of hexamethylene tetramine (based on the weight of said aralkylene-phenol resin).
Claim 25
Dependent Claim
23 words
A composition according to claim 22 which comprises 10 - 30% of said novolac resin and 90 - 70% of said aralkylene-phenol resin.
Claim 26
Dependent Claim
23 words
A composition according to claim 23 which comprises 10 - 30% of said resole resin and 90 - 70% of said aralkylenephenol resin.
Claim 27
Dependent Claim
82 words
A composition according to claim 24 which comprises 20 - 30% (based on the total resin weight) of a phenol-X formaldehyde novolac resin, 80 - 70% (based on the total resin weight) of a resin obtained by reacting a xylylene glycol dimethyl ether with 1,4 - 2.5 moles (per mole of ether) of a phenol which is selected from the group consisting of phenol, resorcinol, catechol and 4-methyl catechol, and 10 - 15% of hexamethylene tetramine (based on the total resin weight).
Claim 28
Dependent Claim
83 words
A composition according to claim 25 which comprises 20 - 30% (based on the total resin weight) of a phenol-X formaldehyde resole resin, 80 - 70% (based on the total resin weight) of an aralkylene-X-phenol resin obtained by reacting a xylylene glycol dimethyl ether with 1.4 - 2.5 moles (per mole of ether) of a phenol selected from the group consisting of phenol, resorcinol, catechol and 4-methyl catechol and 10 - 15% of hexamethylene tetramine (based on the weight of said aralkylene/phenol resin).
References Cited (Backward Citations)
GB623271A
Cited
GB1098029A
Cited
US3316140A
Cited
US3375225A
Cited
US3576788A
Cited
GB1210240A
Cited
GB1338219A
Cited
US3787350A
Cited
US3838103A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1980-04-25 | 1980-10-25 | 1981-04-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1984-04-25 | 1984-10-25 | 1985-04-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1988-04-25 | 1988-10-25 | 1989-04-26 | $7700.00 | Window Closed / Lapsed |