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Патент USA US2401898

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2,401,898
Patented June 11, 1946
‘UNITED STATES PATENT OFFICE
2,401,898
ALKALI-RESISTANT BINDER
Isidor M. Bernstein, Brooklyn, N. Y., assignor, by
mesne assignments, to H. D. Roosen Company
Inc., Brooklyn, N. Y., a. corporation of Delaware
No Drawing. Application September 13, 1943,
,
1
6
.
Serial No. 502,194
(Cl. 260-23)
Claims.
.
This invention relates to soap wrapper ink
vehicles or the like which must beresistant to
the free alkali of the soap and must have ability
to resist the detergent and saponifying action of
the vmoist soap itself, and more particularly to a
novel and improved binder for use in such
vehicles. The binder is also useful‘as an oxidiz
able coating, as a linoleum ?ller or binder, or, in
general, where an alkali resistant coating com
position is required.
An object of the invention is to provide a~binder
of the above type having novel and improved
characteristics.
2
forming constituents from a mixture of such
polyethers by means of an acidi?ed solvent. Such
puri?ed polyethers from which the di-ether and
the gel forming constituents have been removed
will be referred to hereinafter for convenience as
“puri?ed polypentek.”
The puri?ed polypentek may be esteri?ed with '
a drying oil fatty acid or a semi-drying oil fatty
acid, such as that of China-Wood oil, perilla oil,
linseed oil, dehydrated castor oil or soya bean oil
to form a drying oil ester of puri?ed polypentek.
. It may also be esteri?ed with a resin acid, such as
rosin, or a natural “run” or heat depolymerized
resin to form a resin ester of puri?ed polypentek.
Another object is to provide a binder which
improves the resistance qualities of the dried ?lm 15 A mixture of these two esters constitutes the
resin-modi?ed drying oil referred to above and
of the vehicle in which it is incorporated.
,
has been found to be a solvent for such un
Various other objects and advantages will be
saponi?able resins when in both the hot and the
apparent as the nature of the invention is more
cold state. Hence the latter resins may be dis
'
It has long been known that the dried ?lms of 20 solved in said resin modi?ed drying oil and will
remain in solution in the ?lm after the latter has
China-wood oil-para phenyl phenol formaldehyde
set
and dried.
resin vehicles possess excellent alkali and soap
Instead of esterifying the puri?ed polypentek
resistance. Chlorinated rubber dispersed in a
with the drying oil fatty acid and with the resin
suitable solvent has also been successfully used.
acid separately and forming a mixture thereof,
However, due to the present shortage of these 25 the
esteri?cation may be effected simultaneously,
materials, it has become very difficult to produce
in which event, a co-ester is formed which has
soap resisting vehicles of good quality.
been found to have properties similar to the
Unsaponi?able resins have heretofore been
mixed ester above mentioned. This co-ester or
used as diluents in ink vehicles, but these resins
mixed ester is referred to herein for convenience
did not add to the inherent soap resistance of the 30 as the esteri?cation products of the above sub
dried ?lm of the vehicle in which they were
stances.
present.
The drying oil fatty acid ester of puri?ed poly
In accordance with the present invention, I
pentek,
by itself, possesses certain soap resistant
have found that various unsaponi?able resins
qualities but is not suitable for use with the
such as coumarone and indene resins, when dis 35
coumarone or indene resins because of the in
solved in certain hereinafter speci?ed resin
solubility of such resins in the ester when cold,
modi?ed drying oils, which have been found to
which is a‘ characteristic peculiar to this ester.
be solvents for such resins in both the hot and
The co-ester or mixed ester above speci?ed, how
cold state, form a binder having improved soap
ever, avoids this difficulty and holds such resins
40
resistance characteristics.
_
in solution even when cold.
A resin modi?ed drying oil suitable for this
Exam-pies of the above esteri?cation products
purpose comprises the esteri?cation products of
and methods of making the same are set forth
a drying oil fatty acid and a resin acid when
in my co-pending application 428,384, above
.esterified with puri?ed polyethers of penta
erythritol higher than the di-ether from which 45 mentioned.
fully disclosed.
gel-forming constituents have been removed.
The products may comprise the co-ester or a
, The following are examples of binders embody
ing the present invention:
'
Example 1
mixture of the esters of said polyethers when
‘
Parts
esteri?ed separately with a drying oil fatty acid
50 Rosin ________________________________ __ 8.32
and with a resin acid.
The polyethers of pentaerythritol higher than
Linseed fatty acids ______________________ _. 17.17
Puri?ed polypentek ____________________ _- 4.20
the di-ether may be obtained in accordance with
Decolorizing carbon‘ ___________________ __ 0.51
the process set forth in my co~pending applica
Mineral spirits (boiling .range 152° C.
tion Ser. No. 428,384, ?led January 27, 1942,
which discloses a method for removing the gel 55 207° C.) ____________________________ _- 1.01
-————4
2,401,895
3
4
Esterify at 530° F. until acid value has de
drying oil comprising the esteri?cation products
‘ creased to approximately 6. This will give: Co
of polyethers of pentaerythritol higher than the
ester of rosin and linseed oil fatty acid with puri
?ed polypentek.
Add and dissolve therein: 28.33 parts couma
rone, and/or indene resins.
di-ether with a drying oil fatty acid and a resin
acid, the resin modi?ed drying oil being present
in a, proportion suited to form a stable solution of
the resins when cold.
2. An oxidizable binder comprising a resin se
lected from the group consisting of the couma
rone and indene resins, dissolved in a resin modi
'
Example 2
Parts
Drying or semi-drying oil 'esteri?cation
product of puri?ed polypentek ________ .._ 18.92‘
Rosin or “run” natural resin esteri?ca'
tion product of puri?ed polypentek ____ __ 9.41
10,
?ed drying oil comprising the co-ester of poly
ethers of pentaerythritol higher than the di-ether
with a drying oil fatty acid and a resin acid, the
resin modi?ed drying oil being present in a pro
Dissolve therein: 28.33 parts coumarone and/or
portion suited to form a stable solution of the
indene resins.
15 resins when cold.
Example 3
.
3. An oxidizable binder comprising a resin se
Parts
lected from the group consisting of the couma
“Run" Congo (70-80 acid value)_'__' ____ __ 7.83'
rone and indene resins, dissolved in a resin modi
Puri?ed polypentek ____________________ __ 3.95.
?ed drying oil comprising a mixed ester consist
Linseed fatty acids _____________________ __ 22.42 20 ing of the esteri?cation productof polyethers of
Decolorizing carbon ____ _; ______________ __ _ 0.48
pentaerythritol higher than the di-ether and a
Mineral spirits ________________________ __
0.96
drying oil fatty acid and the esteri?cation prod
uct of polyethers of pentaerythritol higher than
Esterify at 530° F. until acid value has de
' the di-‘ether and a resin acid, the resin modi?ed
creased to approximately 6. This willgive: Co
ester of Congo and linseed oil fatty acid with 25 drying oil being present in a proportion suited
puri?ed polypentek.
_
Dissolve therein: 26.60 parts coumarone and/or
indene resins.
-
to form a, stable solution of the resins when cold.
4. An oxidizable binder comprising a resin se
lected from the group consisting of the couma
rone and indene resins,‘ dissolved in a resin modi
The binder produced in accordance with the
fied drying oil comprising the esteri?cation prod
above examples comprises a plastic, thick, gummy 30 ucts of polyethers of pentaerythritol higher than
mass. This binder may be useful as such as a
the di-ether with rosin and linseed oil fatty acid,
linoleum ?ller or an oxidizable coating material,
the resin modi?ed drying oil being present in a
or may be dissolved in a solvent to form a vehicle.
proportion suited to‘ form a stable solution of the
Such a solvent may comprise a petroleum solvent 35 resins when cold. '
or other organic solvent. '
'
v5. A printing ink vehicle comprising a solvent
As a speci?c example, a mixture of binder and
having dissolved therein a binder comprising a
petroleum solvent having a boiling range of 450°
resin selected from the‘ group consisting of the
F. to 750° F. containing from 40% to 50% of
coumarone and indene resins, dissolved in a resin
solvent is suitable for use as a printing ink ve 40 modi?ed drying oil comprising the esteri?cation
hicle.
A pigment such as carbon black or a suitable
colored pigment may be incorporated in this ve- 1~
hicle in the usual manner to form a printing ink
having the soap resistant qualities outlined'above.
Obviously, the vehicle may also be used as a var
nish, paint, or other coating composition.
Although certain speci?c embodiments have
been set forth by way of example, it is to be un
products of polyethers of pentaerythritol higher
than, the di-ether with a drying oilfatty acid
and a resin acid, the resin modi?ed drying oil
being present in a proportion suited to form a
stable solution of the resins when cold.
6. A printing ink'comprising a solvent having
dissolved therein a pigment and a. binder, said
binder comprising a resin selected from the group
consisting of- the coumarone and indene resins. ‘
derstood that the invention is not to be restricted 50 dissolved in the esteri?cation products of poly
thereto, but is only to be limited in accordance
ethers of pentaerythritol higher than the di-ether
with the scope of the following claims.
with a drying oil fatty acid and a resin acid, the
‘What is claimed is:
resin modified drying oil being present in a pro
1. An oxidizable binder comprising a resin se-'
portion suited to form a stable solution of the
lected from the group consisting of the coumarone 65 resins when cold.
and indene resins dissolved in a resin‘ modi?ed
ISIDOR M. BERNSTEIN. ’ '
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