US4853364A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Developer composition comprising phenol resins and vinylic or acrylic resins
Assignee: Mead Corp
•
Filing: 1988-02-05
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Granted: 1989-08-01
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Expires: 2008-02-05
Abstract
Abstract A developer composition comprising first and second developer materials, said first developer material being a finely divided thermoplastic phenolic resin and said second developer material being a finely divided thermoplastic vinylic or acrylic resin containing pendant developer moieties, said first and second developer materials being sufficiently compatible that upon heating they coalesce to form a non-tackey, and scratch resistant film.
Inventors
- 👤 Rong-Chang Liang
- 👤 Emerson K. Colyer
- 👤 Kelli J. Borello
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 08:09
CPC Classifications
B; B41; B41M; B41M5/00; B41M5/124; B41M5/132; B41M5/155; G; G03; G03F; G03F7/00; G03F7/002; Y; Y10; Y10T; Y10T428/00; Y10T428/25; Y10T428/254
Claims Analysis
Total Claims: 36
Claim 1
Independent Claim
56 words
A developer composition comprising first and second developer materials, said first developer material being a finely divided thermoplastic phenolic resin and said second developer material being a finely divided thermoplastic vinylic or acrylic resin containing pendant developer moieties, said first and second developer materials being sufficiently compatible that upon heating they coalesce to form a film.
Claim 2
Dependent Claim
56 words
A developer composition comprising first and second developer materials, said first developer material being a finely divided thermoplastic phenolic resin and said second developer material being a finely divided thermoplastic vinylic or acrylic resin containing pendant developer moieties, said first and second developer materials being sufficiently compatible that upon heating they coalesce to form a film.
Claim 3
Dependent Claim
44 words
The developer composition of claim 1 wherein said second developer material is prepared by emulsion polymerization and has a core portion and a shell portion and said shell portion is formed from a vinylic or acrylic polymer which is compatible with said phenolic resin.
Claim 4
Dependent Claim
35 words
The developer composition of claim 2 wherein said core portion is formed from a polymer having a melt flow temperature which is less than the melt flow temperature of the polymer forming said shell portion.
Claim 5
Dependent Claim
14 words
The developer composition of claim 3 wherein said phenolic resin is a phenol-formaldehyde resin.
Claim 6
Dependent Claim
15 words
The developer composition of claim 4 wherein said phenol-formaldehyde resin is a metallated alkylphenolformaldehyde resin.
Claim 7
Dependent Claim
22 words
The developer composition of claim 3 wherein said phenolic resin is a product of oxidative coupling of a phenol or a biphenol.
Claim 8
Dependent Claim
19 words
The developer composition of claim 6 wherein said phenolic resin is a product of oxidative coupling of bisphenol A.
Claim 9
Dependent Claim
23 words
The developer composition of claim 3 wherein said phenolic resin is a metallated condensation product of a phenol, formaldehyde and a salicylic acid.
Claim 10
Dependent Claim
23 words
The developer composition of claim 1 wherein said first and second developer materials have a particle size of about 0.5 to 25 microns.
Claim 11
Dependent Claim
155 words
The developer composition of claim 3 wherein said acrylic or vinylic resin is a polymer having a repeating unit of formula (I), (II) or (III) ##STR8## where R is a hydrogen atom or a methyl group; L is a direct bond or a spacer group; X is --OH, --COOH, --OM, COOR' or a group of the formula (IV): ##STR9## Y is an alkyl group, an aryl group, or an aralkyl group; X' is --OH, --COOH, --OM, or --COOR'; W is --O-- or --COO--; Z is --OH or a hydrogen atom; M is a metal atom; M' is a divalent metal atom; R' is a hydrogen atom, an alkyl group, or a metal atom as defined for M; n is 1 or 2 and when n is 2 X or X' may be the same or different; and m is 0, 1, or 2 and when m is 2 Y may be the same or different.
Claim 12
Dependent Claim
28 words
The developer composition of claim 10 wherein said acrylic or vinylic polymer has a melt flow temperature of about 80° C. to 130° C. (pressure free, 1 minute).
Claim 13
Dependent Claim
23 words
The developer composition of claim 11 wherein said polymer contains about 1 to 100 wt % of the repeating unit of formula (I)-(III).
Claim 14
Dependent Claim
45 words
The developer composition of claim 12 wherein said polymer is a copolymer of a monomer yielding the unit of the formula (I)-(III) and a monomer selected from the group consisting of acrylic acid, methacrylic acid, alkyl acrylates, alkyl methacrylates, styrene, vinyl acetate, and vinylidene chloride.
Claim 15
Dependent Claim
20 words
The developer composition of claim 1 wherein said developer materials exhibit a minimum film forming temperature greater than 60° C.
Claim 16
Dependent Claim
27 words
The developer composition of claim 10 wherein Y is selected from the group consisting of methyl, n-butyl, t-butyl, t-amyl, cyclohexyl, benzyl, α-methylbenzyl, α,α-dimethylbenzyl, diphenylmethyl, diphenylethyl, and chlorophenyl.
Claim 17
Dependent Claim
28 words
The developer composition of claim 3 wherein said core portion is formed from a polymer having a refractive index which approximately equals refractive index of said phenolic resin.
Claim 18
Dependent Claim
26 words
The developer composition of claim 3 wherein said shell portion is formed from a polymer having a melt flow temperature of about 100° to 150° C.
Claim 19
Dependent Claim
23 words
The developer composition of claim 13 wherein said acrylic or vinylic developer is a polymer having a repeating unit of the formula (II).
Claim 20
Dependent Claim
24 words
The developer composition of clam 1 wherein said composition contains about 5 to 90% by weight of said finely divided acrylic or vinylic resin.
Claim 21
Dependent Claim
24 words
The developer composition of clam 1 wherein said composition contains about 5 to 90% by weight of said finely divided acrylic or vinylic resin.
Claim 22
Dependent Claim
23 words
The developer composition of claim 13 wherein said acrylic or vinylic resin is a polymer having a repeating unit of the formula (I).
Claim 23
Dependent Claim
36 words
The developer composition of claim 20 wherein said acrylic or vinylic resin is a polymer having a repeating unit of the formula (Ia) ##STR10## where R, L, Y and m are defined as in formula (I).
Claim 24
Dependent Claim
29 words
The developer composition of claim 20 wherein said acrylic or vinylic resin is derived from the monomer (Ib) ##STR11## where R and Y are defined as in formula (I).
Claim 25
Dependent Claim
34 words
The developer composition of claim 20 wherein said acrylic or vinylic resin is a polymer derived from the monomer of the formula (Ic) ##STR12## where Y and R are defined as in formula (I).
Claim 26
Dependent Claim
32 words
The developer composition of claim 18 wherein said acrylic or vinylic resin is dervived from a monomer of the formula (IIa) ##STR13## where R and Y are defined as in formula (II).
Claim 27
Dependent Claim
23 words
The developer composition of claim 13 wherein said acrylic or vinylic resin is a polymer having a repeating unit of the formula (III).
Claim 28
Dependent Claim
25 words
The developer composition of claim 19 wherein said composition contains about 20 to 50% by weight solids of said finely divided acrylic or vinylic resin.
Claim 29
Dependent Claim
16 words
The developer composition of claim 16 wherein said core portion is formed from a styrene copolymer.
Claim 30
Dependent Claim
23 words
The developer composition of claim 27 wherein said core portion is a polymer of styrene, methacrylic acid, butyl acrylate and zinc bis(3,5-di-t-butyl salicylate).
Claim 31
Dependent Claim
21 words
The developer composition of claim 28 wherein said shell portion is a copolymer of methyl methacrylate, butyl acrylate and methacrylic acid.
Claim 32
Dependent Claim
14 words
A developer sheet carrying a layer of developer composition in accordance with claim 1.
Claim 33
Dependent Claim
28 words
The developer sheet of claim 30 wherein said developer sheet carries a layer of a developer composition in accordance with claim 16 and said developer sheet is transparent.
Claim 34
Dependent Claim
11 words
A pressure-sensitive recording material including the developer sheet of claim 1.
Claim 35
Dependent Claim
11 words
The photosensitive recording material including the developer sheet of claim 1.
Claim 36
Dependent Claim
62 words
The developer composition of claim 1 wherein said finely divided thermoplastic phenolic resin is selected from the group consisting of a condensation product of formaldehyde and a phenol, the oxidative coupling product of a substituted or unsubstituted phenol or biphenol, and condensation products of a polyvalent metal salt and a phenol, a phenol-formaldehyde condensation product, or a phenol salicylic acid-formaldehyde condensation product.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1992-07-31 | 1993-01-30 | 1993-08-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1996-07-31 | 1997-01-30 | 1997-08-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2000-07-31 | 2001-01-30 | 2001-08-01 | $7700.00 | Window Closed / Lapsed |