CA2318155A1 - Use of nylon films in home dry cleaning bags - Google Patents
Use of nylon films in home dry cleaning bags Download PDFInfo
- Publication number
- CA2318155A1 CA2318155A1 CA002318155A CA2318155A CA2318155A1 CA 2318155 A1 CA2318155 A1 CA 2318155A1 CA 002318155 A CA002318155 A CA 002318155A CA 2318155 A CA2318155 A CA 2318155A CA 2318155 A1 CA2318155 A1 CA 2318155A1
- Authority
- CA
- Canada
- Prior art keywords
- nylon
- copolymer
- bag
- film
- blend
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Abandoned
Links
Classifications
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06F—LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
- D06F43/00—Dry-cleaning apparatus or methods using volatile solvents
- D06F43/007—Dry cleaning methods
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06F—LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
- D06F43/00—Dry-cleaning apparatus or methods using volatile solvents
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
- B65D29/00—Sacks or like containers made of fabrics; Flexible containers of open-work, e.g. net-like construction
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J5/00—Manufacture of articles or shaped materials containing macromolecular substances
- C08J5/18—Manufacture of films or sheets
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L77/00—Compositions of polyamides obtained by reactions forming a carboxylic amide link in the main chain; Compositions of derivatives of such polymers
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L77/00—Compositions of polyamides obtained by reactions forming a carboxylic amide link in the main chain; Compositions of derivatives of such polymers
- C08L77/02—Polyamides derived from omega-amino carboxylic acids or from lactams thereof
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L77/00—Compositions of polyamides obtained by reactions forming a carboxylic amide link in the main chain; Compositions of derivatives of such polymers
- C08L77/06—Polyamides derived from polyamines and polycarboxylic acids
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06F—LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
- D06F95/00—Laundry systems or arrangements of apparatus or machines; Mobile laundries
- D06F95/002—Baskets or bags specially adapted for holding or transporting laundry; Supports therefor
- D06F95/004—Bags; Supports therefor
- D06F95/006—Bags for holding the laundry during washing
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Medicinal Chemistry (AREA)
- Health & Medical Sciences (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Textile Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Mechanical Engineering (AREA)
- Materials Engineering (AREA)
- Manufacture Of Macromolecular Shaped Articles (AREA)
- Polyamides (AREA)
- Compositions Of Macromolecular Compounds (AREA)
Abstract
An improved process for cleaning fabrics in a conventional automatic clothes dryer wherein a plastic bag is formed from a blend of at least one nylon homopolymer and at least one nylon copolymer. Preferably the nylon homopolymer is nylon 6 and the nylon copolymer is nylon 6/66 copolymer. The process includes placing soiled fabrics in the plastic bag, placing the plastic bag into the drum of the dryer, and rotating the dryer with the introduction of hot air. This invention also relates to bags formed from such blends which are used in home dry cleaning processes.
Description
.: ::::,,:~::::::.:'.;~......;.. :'':::::::::.:::.:.:.;: :.:::..:' ~:':::::'::'..'::r:::~: :::
:. ~,~.:: .. .: :.: w. :...... . :. . . :.: .::. ::: :::::::::::::::>.
;:.. .re .:: .. . .. :: ::::: ::: ::..::::::::::.:.
.::::::::::::....._:::::::::.~:::::::::::::::.
:::::::::::::::::::::::::::::::.::.::::::::::: ~.....:_:.....:........_.. .
:..'.....::::::'. '....:....::: ... :....... ..:...: : p~~~~S ~ . _ ~O/~S 1 ? ~;~a~ 1999 USE OF NYLON FILMS IN HOME DRY CLEANING BAGS
BACKGROUND OF THE INVENTION
Field of the Invention This invention relates to films for use in dry cleaning bags for in-home use.
Description of the Prior Art It has been suggested to provide in-home dry cleaning of garments and the like by utilizing a conventional home dryer. The garments are placed together with a material which releases a cleansing agent into a plastic bag. The bag is placed into a home dryer and the cleansing agent is released under the action of heat to clean the garments.
One concern with this technique is the melting or fusing of the bags due to hot spots in the dryer. Although nylon and polyester films in general have been suggested as the type of material for the bags, heretofore a satisfactory bag has not been achieved.
It would be desirable to provide a method of using a nylon-containing bag in a home dry cleaning process.
SUMMARY OF THE INVENTION
In accordance with this invention, there is provided in a process for cleaning fabrics in a conventional automatic clothes dryer wherein the soiled fabrics are placed in a plastic bag, and the plastic bag is placed into the drum of the dryer, the dryer is rotated and hot air is introduced into the dryer. the improvement wherein the bag is formed of a nylon film composition selected from the group consisting of (a) a blend ......................:...........................:..... '~ ~rt' ~ : r-f r ~ .
' .~
.............................................::..:: :.
::v::,y:::.v.:;%::;:.::;:::::::;:':'..: ~.. 1JG:S ~~ . ~ _ _ ~ ; ~ . ~ _ G.r ::::.
:.:: . .. ...: .::..:.: 07 17 :....::
.. ~'j~'1~~:: : 0 3 0 0 0 - - :.,.::.
~.~~~CA~ 2~ 1815 5 2 .;:...:::.::....: .:::.;.. :....:.....: ..,:: ~..w: : ::: t" !,a t 61~~7 ~ j .1:::: :,~:E~ : "?::
::.:..;~....:;,.. ; . . .;:, :-.....~.: ...'..L.'..:.:....: :...:'1::.4~:..
;:....::.:.....-::::::::..::::.~:..:::.:........ ...
.; : .; . :: .: . . ~ .:;::;..~.~...~.:::-.~.'~:.~:~.~.':::...;'...'.,.....::::::::::::
:: :.:.:...:.:.......:..: ......:.:..
... . : . ~a j~S 1 ~ , comprising at least one nylon homopolymer and at least one nylon copolymer and (b) at least one nylon copolymer. Preferably the nylon homopolymer is nylon 6, nylon 66 or a mixture of nylon 6 and 66, and the nylon copolymer is a nylon 6/66 copolymer, a nylon 6112 copolymer or a mixture of such copolymers. Also in accordance with this S invention, there is provided a plastic bag for use in dry cleaning, wherein the bag is formed from a film selected from the group consisting of (a) a blend comprising at least one nylon homopolymer and at least one nylon copolymer and (b) at least one nylon copolymer, with the preferred nylon homopolymers and copolymers being those mentioned in the prcvious sentence. The nylon composition may also contain additives such as heat stabilizers, plasticizers, extrusion aids, pigments, and the Like.
Bags formed from such nylon compositions are resistant to hot spots in a home dryer, and are soft, flexible and heat stable.
DESCRIPTION OF THE PREFERRED EMBODIIvvIENTS
The nylon composition used in this invention comprises a blend of at least one nylon homopolymer and at least one nylon copolymer. Preferably, the nylon homopolymer is selected from the group consisting of nylon 6, nylon 66 and mixtures thereof. ' The nylon homopolymers can be prepared in any conventional manner. For example, nylon 6 can be prepared by the condensation of epsilon-caprolactam, and nylon 66 from the hexamethylene diamine (or a salt thereof) and adipic acid.
2S In the case of nylon 6, the preferred nylon, suchpolymer typically has a number average molecular weight as measured in formic acid in the range of about 15,000 to about 40,000, preferably in the range of about 25,000 to about 35,000. The nylon 6 may be washed, unwashed, or partially washed. The nylon 6 may have balanced end groups, or be monofunctionally or difunctionaily terminated. In the case of nylon 66, polymers of film forming molecular weight are preferred.
W : 'Liv~.. 1 ~TU ~ L ._5'~-_- _ _ _ _ .
.. . ...
::. :::::::::::::: :~:: r::,:::::::::r::::::.:;:: : ::.
.:::::::,:::::~:~..,;CA:::_:::2:~18:15~5 2 - 7-17 ..'....
.......
:..:::~-..:.::..::.:;::.:.::::.::;:.:v,;.v:v;.::;;:' ' ' ~ :::::v:: :::;::-.::: .:'.:....:...:...:..:
:;'; ::. =: :..'. '.1~: v .'~.~~:: w ~:': ::::f _: :~~.;~::::.:: . N r U~ . ~:::.::: ::.:: . .:.:...::
::::...:::.:::.::;::...:::::......:...~::.::::.-..::>:>:>::......::::...:: L ~
:.::..:::....:...:..:::....::::......::..::.....
The composition used in this invention further comprises at least one nylon copolymer. The preferred copolymer is poly(epsiloncaprolactam-hexamethylene adipamide) copolymer (which is herein also referred to as nylon 6/66 copolymer).
The nylon 6166 copolymer may be formed by any conventional means known to the art, including but not limited to processes wherein suitable monomeric constituents, i.e. caprolactam, hexamethylene diamine, and adipic acid are reacted to form a copolymer. In a further conventional manner, a salt of hexamethylene diamine, and adipic acid is added to caprolactam, and these constituents are reacted to form a copolymer.
The relative proportion of nylon 6 to nylon 66 components in the copolymer may vary widely, with the proportion of nylon 6 segments comprising any amount between 0.1 % to 99.9% of the nylon 6/66 copolymer structure. The nylon 6166 copolymer may be either a block type copolymer or a random type copolymer.
Preferably the nylon 6 segments of the nylon 6/66 copolymer comprises between 10%
and 35% by weight, most preferably the nylon 6 comprises between 20% and 30%
by weight of the nylon 6/66 copolymer, with the nylon 66 segments comprising the remaining amounts.
The nylon 6/66 copolymer preferably has a number average molecular weight as measured in a 95% sulfuric acid solution, in the range of about 15,000 to about 40,000, preferably in the range of about 20,000 to about 35,000. The nylon copolymer may be washed, unwashed or partially washed.
Another copolymer that can be employed is a nylon 6/12 copolymer which can be prepared from caprolactam and lauryl lactam, and the relative proportions of nylon 6 segments to nylon 12 segments can likewise vary widely. As pointed out above, mixtures of two or more copolymers may also be employed.
In forming the film compositions used in this invention, the relative ratio of the nylon homopolymer to the nylon copolymer may be varied over a broad range so that the nylon homopolymer comprises between about 0.01% to about 99.99% of the C~ ,R~~t"'y n-C C~..;'_ .................................................. .. r, ...
::::~.i!::>:::::~:::::::~;:::~:::::::::~:::::::::::'r::'.
P~il~ti~~~.~~, ..;:;::::::.:::::.:::::::::.:::.::;::~A 02318155 2000-07-17 ::::
.............. . , , , :::::::::::::::.::.~::::::::::::.:
. ......:...~:::::::::::::.::::::.~:::::::::::::::::::. ~w +~.~ rs,~
za;~.la.:...._:....::..:...:;:::::::::::
........ ......::.:::::::::::::::. . . ., . ~ ._ _ . .:~::...;:..:.......:
....,,...:...:.:..:~:::...:::.:...;: m i m m ;.:.:. .:... :.::;:>::;::;::::.::
:..::::::,.~.:.~.:.::::.~..::::::::::.:~:::.v . ., . 4 I « :: . :. . :~ >: . :
. .. . : .. .. :: ::: . ::. :... .: ::::._:::::::::.
C...~..r:.:::..:~:::~~:~::~w..,....:.,;..:.,..I.NC tiE.1 U L _. _ ___ . , :.
.: :: :. .:. . ... : : ~ ;; ::~~a.~:::::::::::::
.: , : .~,:.:.:.. ~: : :. .: .. . :.:~. .:;'~' ; ..~~.::.
,::::::.::>::::.::.:>:::::.:: >::::.:;: >:
,. : _: :. .~.. ~. ~ . ~ . ~ :.~.
::,::::~a.',::::::::::;::.:::::::::::::::::::::::::: .:.. .. .
.;."'t! .::............... :.........:.......... . ... ... .......
sum of the weights of the nylon humopolymer and nylon copolymer of the film composition. It is to be understood that the relative ratio of the nylon homapolymer to the nylon copolymer in a composition may be purposely varied and seEcctcd so to produce a film having particular desired physical properties. Preferably, the compositions comprise from about 40 to about 80% by weight of nylon homopolyrner and correspondingly from about 60 to about 20% by weight of nylon wpvlymer, and more preferably about 55 to about 75% by weight of nylon homopolymer and correspondingly from about 45 to about 25 % by weight of nylon copol3~ncr, especially where the nylon homopolymer is nylon 6 and the nylon copolymer is nylon Z 0 6166.
Films formed fmm blends of nylon 6 and nylon b~'66 copolymer are presently preferred. Such films are disclosed, for cxacnplc, in U.S. Patent 5,206,309 to Altman.
15 ~ Alternatively, the films can be formed only from a nylon copolymer, such as nylon 6166 and nylon 6!12 and mixtures thereof, with the nylon 6/66 being presently preferred.
'fhe films of this invention may contain conventional additives such as 20 coloring agents (e.g., dyes or pigrr~nts), lubricants, mold release abents, flame reta,rdants, fibrous and particulate fillers and-reinforeing agents, ultraviolet and other Eight stabilizers, heat stabilizers, extrusion aids, plasticizers, nucleating agents, and other conventional additives.
25 Blending ox mixing of the constituents which comprise the film compositions rnay be by any effective means which preferably result/ in uniform dispersion.
All of thz constituents may be mixed s'unultanaously or separately by a blender, lrneader, roll, extruder, or the like in order to assure a uniform blend of the constituents. 1n the alternative, the nylon homopolymer and the nylon copolymer may he blended or 30 mixed by mixer, blender, kncadcr, roll, extruder, or the liEcc in order w assure a uniform blend ofthe constituents aad resultant mixture is melt-kneaded with the ....
:::.;:.:...::..:::<:...:::...:::::::...:::::::::;::,::::::::-.:,: ''':' :.::~::~::.:::.:.,.v._A~231~8.155 2000 ''' s~~~~.*:z::::::::::::::::;;:::::~
.::::...w::::::.:~.v:.~.~.v:.............................. ~ ~ _ ~ ~ i:Y:::~
~.. . . . . . r . .........:.....:::::.as:: ~.~::::: :.:.~.~:~:::~:::::::~: ~ -. -r r::::::.::::.:::._::::: :.:.::.
....,......,.,............,~....yl.Ill.IV \I 4 'f'- ~- .
.::::::::::::.::::::;:..:::.:::::::::::.:::..~..:::.. 1.1 ~ l ~ t:li1 t~!~~
tip _ifs''J.::::.~::.:::.:::.::::-.:~::::::::.
~.:::.::..;::::::.:::.,::>:>:>::.:.~.::::__ _ _ _ _ _ _. _ ___.::.:.,: :..;.:
:.: :..:... .::.:...::...:.::.:..:::.:..::. :.: . . . : . .:.:;::.::.:::.:::.:
,. ; .,~ ;. ;:~.~ : . .: . ;, :::.~',.~~.~~4:~. >f~~..fE~.f~..~.4~~ :::
;1~~,.:::::.:;>::::.:::.:::..
..,.~~.:.~.~: :.~~:. .:::::::. ~:::::. ~::::: :...:::::::::::::. :::.::
:..:::: ::::. ~::::. ~:::::::::::::::
remaining constituents in an exavder to make a uniform blend. A common method is to melt-knead a pre»ously dry-blended composition ~~uther in a heated extruder provided with a singlo-scre~~, or in a heated extruder provided with a singlo-screw, or in the alternative, a plurality of screws, extrude the uniform composition into strands, and subsequently chop the extruded strands into pellets. In an alternative and preferred method, the dry-blended composition is provided to a ~~lm forming apparatus which comprises a heat extruder having at least a single screw, which heated extruder melts the constitueats of the dry-blended composition and forms a film therefrom through a film die.
14 The film compositions may be formed into films by conventional methods using conventional film forming apparatus. Conventional methods include the production of films by blown film techniques, by extruding the film though a film forTning dye and optionally casting the film, calendering, and forming a film forming composition into a billet and subscquentty skiving a film from a billet. In one of these 15 . methods a film forming composition is melt blended in an extruder to form an ex4rudate which is then extruded through a film forming die onto a casting roll. In another method, the film forming apparatus may be one which is referred to in the art as blown film apparatus and includes a circular die head thmugh which the film composition is forced and formed into a filrrx bubble, which is ultimately collapsed 20 and formed into a film.
The films may optionally be stretched or oriented in any direction if so desired. In such stretching operation, the film may be stretched in either the direction coincident with the direction of movement of the film being withdravr~ from the casting roll; also referred to in the art as the machine direction, or in a direction 25 which is perpendicular to the machine direction, and referred to in the art as the transverse direction. or in both the machine direction and the transverse direction_ The films formed by any of the above methods may be of any thickness desired and includes those which have a thickness less than 2.54'rnm (104 tulle).
30 Preferably, the films have a thickness in the range of about 0.44254 nun (0.1 mif) and about 0.254 mm (10 mils); most preferably :.:.~:.:::::: .:. .: .::."r..:<.~,.~ ..;,e.~,: :...:::.
0 3 000 0 '....::
:.. ......E'1~'l~E~d~ ~v.~~A ~::'..:;2'~,.::1:815 5 2 - 7 - 17 _ _ _ ,. , . "_ _.............. ....
_ ~ .. _ _ ~ _ ~. ~ ~~:::n~:::.~:::::::::::::::u:::: :~:::..:::::::u;;; yr . .
. vv n . f W V ~ JV.w:::::.::::::::::::: :.:.
.::::;::-'::ai '~'';i~''':::: ,:.. ~..:'i:: :':'. . ~':','<:.::..:.:: ::
.::':.,:i:;:'::':'::":::
~: :. : ::. :. :. .: v i :. .: :. : .:. .:: :. :: :: :. .: . . ~ :. . ?. :. .:
i: % ~: '::4:::.::::.::!.::' :: T * i.: :~w : ~ : ~ :: :: :!~? ~:.:i:: :::.;v:.::::::::::.~:._::::::::: :~
: .:::: . i: .~. ~.: . ~::. ~ . . ..
the films have a thickness between about 0.025 mm (1 mil) and about 0.127 mm (5 mils). While such thicknesses are pccfczzed as providing a readily flexible film, it is to be understood that other film thicknesses may be produced to satisfy a particular need.
The above-described films are characterized by being soft and flexible as well as heat stable, so that bags formed froth these filins have the same attributes which are panicularly desirable in bags used in hornc dry cleaning pmcesscs. These films may be fomaed into bass by any conventional technique. For example, when made by a blown film process the bubble could be collapsed and one end heat sealc3, leaving the other end open. Or a flat cast film can be centerfolded and the sides and one end heat sealed. Obviously other techniques can be used to form the bags. These bags may lx provided with conventional closing means which arc used to enclose the contents prior to use.
In accordance with this invention, bags formed from the above-described films 1 ~ are used in a process of cleaninb fabrics, especially clothes, such as in a typical home dryer. The soiled clothes are placed in the bag together with one or more cleansing agents and the open ends) of the bag is secured, 'fhe cleansing agent rnay be incorporated into a carrier, such as a non-woven fiber sheet. The bag is then placed into the dnun of a cony ention2l automatic clothes dryer. When the clothes dryer is . started, the dnim is rotated and hot air is introduced in the dryer. The amount of time which the bag remains in the dryer is dependent upon a number of factors, such as the amount of clothes, their degree of soilness, the effectiveness of the cleansing agent, the temperature in the dryer and similar considerations. Typical times may range, for example, from about ~ minutes to about 40 minutes at aiz temperatures in the range of about 50 to about 400°C, for example.
The bags cant be used with any conventional clothes dryer, such as electric, natural gas or propane gas dryers.
By using films formed from a blend of nylon hom~poiymer and nylon copolymer, preferably a blend of nylon 6 and ny Ton 6166, to form the clothes bags the ::~~'>>:.:.,::;::::__::::~:v::~::
;:~.~1~'i~Qt~ '~~CA 0 2 31815 5 2 0 0 0 0 7 17 ..
:::. :.: . ... . . . .:. .
bags are resistant to hot spots which may occur during the operation of the dryer. As a result, the bag material does not melt during the dry cleaning operation in the dryer.
In addition, the films of this invention are soft and flexible, as well as heat stable.
tw.1 fY /~ \~ . .
~!:~sT~ ~IJTc,.. L~-' _ :. _ .;s,.:::>
.....
...::::::::>:~'.>.-<:::::.;::::=>:.<.::::.:: '<' ::::~x'..i~'l'.ta~':::;:::;::..: :::::..::::::.:~ :::. - _ ....:
::.....:......' ':~WA:..~23:18_155 2000 07 17 ...
:. ~,~.:: .. .: :.: w. :...... . :. . . :.: .::. ::: :::::::::::::::>.
;:.. .re .:: .. . .. :: ::::: ::: ::..::::::::::.:.
.::::::::::::....._:::::::::.~:::::::::::::::.
:::::::::::::::::::::::::::::::.::.::::::::::: ~.....:_:.....:........_.. .
:..'.....::::::'. '....:....::: ... :....... ..:...: : p~~~~S ~ . _ ~O/~S 1 ? ~;~a~ 1999 USE OF NYLON FILMS IN HOME DRY CLEANING BAGS
BACKGROUND OF THE INVENTION
Field of the Invention This invention relates to films for use in dry cleaning bags for in-home use.
Description of the Prior Art It has been suggested to provide in-home dry cleaning of garments and the like by utilizing a conventional home dryer. The garments are placed together with a material which releases a cleansing agent into a plastic bag. The bag is placed into a home dryer and the cleansing agent is released under the action of heat to clean the garments.
One concern with this technique is the melting or fusing of the bags due to hot spots in the dryer. Although nylon and polyester films in general have been suggested as the type of material for the bags, heretofore a satisfactory bag has not been achieved.
It would be desirable to provide a method of using a nylon-containing bag in a home dry cleaning process.
SUMMARY OF THE INVENTION
In accordance with this invention, there is provided in a process for cleaning fabrics in a conventional automatic clothes dryer wherein the soiled fabrics are placed in a plastic bag, and the plastic bag is placed into the drum of the dryer, the dryer is rotated and hot air is introduced into the dryer. the improvement wherein the bag is formed of a nylon film composition selected from the group consisting of (a) a blend ......................:...........................:..... '~ ~rt' ~ : r-f r ~ .
' .~
.............................................::..:: :.
::v::,y:::.v.:;%::;:.::;:::::::;:':'..: ~.. 1JG:S ~~ . ~ _ _ ~ ; ~ . ~ _ G.r ::::.
:.:: . .. ...: .::..:.: 07 17 :....::
.. ~'j~'1~~:: : 0 3 0 0 0 - - :.,.::.
~.~~~CA~ 2~ 1815 5 2 .;:...:::.::....: .:::.;.. :....:.....: ..,:: ~..w: : ::: t" !,a t 61~~7 ~ j .1:::: :,~:E~ : "?::
::.:..;~....:;,.. ; . . .;:, :-.....~.: ...'..L.'..:.:....: :...:'1::.4~:..
;:....::.:.....-::::::::..::::.~:..:::.:........ ...
.; : .; . :: .: . . ~ .:;::;..~.~...~.:::-.~.'~:.~:~.~.':::...;'...'.,.....::::::::::::
:: :.:.:...:.:.......:..: ......:.:..
... . : . ~a j~S 1 ~ , comprising at least one nylon homopolymer and at least one nylon copolymer and (b) at least one nylon copolymer. Preferably the nylon homopolymer is nylon 6, nylon 66 or a mixture of nylon 6 and 66, and the nylon copolymer is a nylon 6/66 copolymer, a nylon 6112 copolymer or a mixture of such copolymers. Also in accordance with this S invention, there is provided a plastic bag for use in dry cleaning, wherein the bag is formed from a film selected from the group consisting of (a) a blend comprising at least one nylon homopolymer and at least one nylon copolymer and (b) at least one nylon copolymer, with the preferred nylon homopolymers and copolymers being those mentioned in the prcvious sentence. The nylon composition may also contain additives such as heat stabilizers, plasticizers, extrusion aids, pigments, and the Like.
Bags formed from such nylon compositions are resistant to hot spots in a home dryer, and are soft, flexible and heat stable.
DESCRIPTION OF THE PREFERRED EMBODIIvvIENTS
The nylon composition used in this invention comprises a blend of at least one nylon homopolymer and at least one nylon copolymer. Preferably, the nylon homopolymer is selected from the group consisting of nylon 6, nylon 66 and mixtures thereof. ' The nylon homopolymers can be prepared in any conventional manner. For example, nylon 6 can be prepared by the condensation of epsilon-caprolactam, and nylon 66 from the hexamethylene diamine (or a salt thereof) and adipic acid.
2S In the case of nylon 6, the preferred nylon, suchpolymer typically has a number average molecular weight as measured in formic acid in the range of about 15,000 to about 40,000, preferably in the range of about 25,000 to about 35,000. The nylon 6 may be washed, unwashed, or partially washed. The nylon 6 may have balanced end groups, or be monofunctionally or difunctionaily terminated. In the case of nylon 66, polymers of film forming molecular weight are preferred.
W : 'Liv~.. 1 ~TU ~ L ._5'~-_- _ _ _ _ .
.. . ...
::. :::::::::::::: :~:: r::,:::::::::r::::::.:;:: : ::.
.:::::::,:::::~:~..,;CA:::_:::2:~18:15~5 2 - 7-17 ..'....
.......
:..:::~-..:.::..::.:;::.:.::::.::;:.:v,;.v:v;.::;;:' ' ' ~ :::::v:: :::;::-.::: .:'.:....:...:...:..:
:;'; ::. =: :..'. '.1~: v .'~.~~:: w ~:': ::::f _: :~~.;~::::.:: . N r U~ . ~:::.::: ::.:: . .:.:...::
::::...:::.:::.::;::...:::::......:...~::.::::.-..::>:>:>::......::::...:: L ~
:.::..:::....:...:..:::....::::......::..::.....
The composition used in this invention further comprises at least one nylon copolymer. The preferred copolymer is poly(epsiloncaprolactam-hexamethylene adipamide) copolymer (which is herein also referred to as nylon 6/66 copolymer).
The nylon 6166 copolymer may be formed by any conventional means known to the art, including but not limited to processes wherein suitable monomeric constituents, i.e. caprolactam, hexamethylene diamine, and adipic acid are reacted to form a copolymer. In a further conventional manner, a salt of hexamethylene diamine, and adipic acid is added to caprolactam, and these constituents are reacted to form a copolymer.
The relative proportion of nylon 6 to nylon 66 components in the copolymer may vary widely, with the proportion of nylon 6 segments comprising any amount between 0.1 % to 99.9% of the nylon 6/66 copolymer structure. The nylon 6166 copolymer may be either a block type copolymer or a random type copolymer.
Preferably the nylon 6 segments of the nylon 6/66 copolymer comprises between 10%
and 35% by weight, most preferably the nylon 6 comprises between 20% and 30%
by weight of the nylon 6/66 copolymer, with the nylon 66 segments comprising the remaining amounts.
The nylon 6/66 copolymer preferably has a number average molecular weight as measured in a 95% sulfuric acid solution, in the range of about 15,000 to about 40,000, preferably in the range of about 20,000 to about 35,000. The nylon copolymer may be washed, unwashed or partially washed.
Another copolymer that can be employed is a nylon 6/12 copolymer which can be prepared from caprolactam and lauryl lactam, and the relative proportions of nylon 6 segments to nylon 12 segments can likewise vary widely. As pointed out above, mixtures of two or more copolymers may also be employed.
In forming the film compositions used in this invention, the relative ratio of the nylon homopolymer to the nylon copolymer may be varied over a broad range so that the nylon homopolymer comprises between about 0.01% to about 99.99% of the C~ ,R~~t"'y n-C C~..;'_ .................................................. .. r, ...
::::~.i!::>:::::~:::::::~;:::~:::::::::~:::::::::::'r::'.
P~il~ti~~~.~~, ..;:;::::::.:::::.:::::::::.:::.::;::~A 02318155 2000-07-17 ::::
.............. . , , , :::::::::::::::.::.~::::::::::::.:
. ......:...~:::::::::::::.::::::.~:::::::::::::::::::. ~w +~.~ rs,~
za;~.la.:...._:....::..:...:;:::::::::::
........ ......::.:::::::::::::::. . . ., . ~ ._ _ . .:~::...;:..:.......:
....,,...:...:.:..:~:::...:::.:...;: m i m m ;.:.:. .:... :.::;:>::;::;::::.::
:..::::::,.~.:.~.:.::::.~..::::::::::.:~:::.v . ., . 4 I « :: . :. . :~ >: . :
. .. . : .. .. :: ::: . ::. :... .: ::::._:::::::::.
C...~..r:.:::..:~:::~~:~::~w..,....:.,;..:.,..I.NC tiE.1 U L _. _ ___ . , :.
.: :: :. .:. . ... : : ~ ;; ::~~a.~:::::::::::::
.: , : .~,:.:.:.. ~: : :. .: .. . :.:~. .:;'~' ; ..~~.::.
,::::::.::>::::.::.:>:::::.:: >::::.:;: >:
,. : _: :. .~.. ~. ~ . ~ . ~ :.~.
::,::::~a.',::::::::::;::.:::::::::::::::::::::::::: .:.. .. .
.;."'t! .::............... :.........:.......... . ... ... .......
sum of the weights of the nylon humopolymer and nylon copolymer of the film composition. It is to be understood that the relative ratio of the nylon homapolymer to the nylon copolymer in a composition may be purposely varied and seEcctcd so to produce a film having particular desired physical properties. Preferably, the compositions comprise from about 40 to about 80% by weight of nylon homopolyrner and correspondingly from about 60 to about 20% by weight of nylon wpvlymer, and more preferably about 55 to about 75% by weight of nylon homopolymer and correspondingly from about 45 to about 25 % by weight of nylon copol3~ncr, especially where the nylon homopolymer is nylon 6 and the nylon copolymer is nylon Z 0 6166.
Films formed fmm blends of nylon 6 and nylon b~'66 copolymer are presently preferred. Such films are disclosed, for cxacnplc, in U.S. Patent 5,206,309 to Altman.
15 ~ Alternatively, the films can be formed only from a nylon copolymer, such as nylon 6166 and nylon 6!12 and mixtures thereof, with the nylon 6/66 being presently preferred.
'fhe films of this invention may contain conventional additives such as 20 coloring agents (e.g., dyes or pigrr~nts), lubricants, mold release abents, flame reta,rdants, fibrous and particulate fillers and-reinforeing agents, ultraviolet and other Eight stabilizers, heat stabilizers, extrusion aids, plasticizers, nucleating agents, and other conventional additives.
25 Blending ox mixing of the constituents which comprise the film compositions rnay be by any effective means which preferably result/ in uniform dispersion.
All of thz constituents may be mixed s'unultanaously or separately by a blender, lrneader, roll, extruder, or the like in order to assure a uniform blend of the constituents. 1n the alternative, the nylon homopolymer and the nylon copolymer may he blended or 30 mixed by mixer, blender, kncadcr, roll, extruder, or the liEcc in order w assure a uniform blend ofthe constituents aad resultant mixture is melt-kneaded with the ....
:::.;:.:...::..:::<:...:::...:::::::...:::::::::;::,::::::::-.:,: ''':' :.::~::~::.:::.:.,.v._A~231~8.155 2000 ''' s~~~~.*:z::::::::::::::::;;:::::~
.::::...w::::::.:~.v:.~.~.v:.............................. ~ ~ _ ~ ~ i:Y:::~
~.. . . . . . r . .........:.....:::::.as:: ~.~::::: :.:.~.~:~:::~:::::::~: ~ -. -r r::::::.::::.:::._::::: :.:.::.
....,......,.,............,~....yl.Ill.IV \I 4 'f'- ~- .
.::::::::::::.::::::;:..:::.:::::::::::.:::..~..:::.. 1.1 ~ l ~ t:li1 t~!~~
tip _ifs''J.::::.~::.:::.:::.::::-.:~::::::::.
~.:::.::..;::::::.:::.,::>:>:>::.:.~.::::__ _ _ _ _ _ _. _ ___.::.:.,: :..;.:
:.: :..:... .::.:...::...:.::.:..:::.:..::. :.: . . . : . .:.:;::.::.:::.:::.:
,. ; .,~ ;. ;:~.~ : . .: . ;, :::.~',.~~.~~4:~. >f~~..fE~.f~..~.4~~ :::
;1~~,.:::::.:;>::::.:::.:::..
..,.~~.:.~.~: :.~~:. .:::::::. ~:::::. ~::::: :...:::::::::::::. :::.::
:..:::: ::::. ~::::. ~:::::::::::::::
remaining constituents in an exavder to make a uniform blend. A common method is to melt-knead a pre»ously dry-blended composition ~~uther in a heated extruder provided with a singlo-scre~~, or in a heated extruder provided with a singlo-screw, or in the alternative, a plurality of screws, extrude the uniform composition into strands, and subsequently chop the extruded strands into pellets. In an alternative and preferred method, the dry-blended composition is provided to a ~~lm forming apparatus which comprises a heat extruder having at least a single screw, which heated extruder melts the constitueats of the dry-blended composition and forms a film therefrom through a film die.
14 The film compositions may be formed into films by conventional methods using conventional film forming apparatus. Conventional methods include the production of films by blown film techniques, by extruding the film though a film forTning dye and optionally casting the film, calendering, and forming a film forming composition into a billet and subscquentty skiving a film from a billet. In one of these 15 . methods a film forming composition is melt blended in an extruder to form an ex4rudate which is then extruded through a film forming die onto a casting roll. In another method, the film forming apparatus may be one which is referred to in the art as blown film apparatus and includes a circular die head thmugh which the film composition is forced and formed into a filrrx bubble, which is ultimately collapsed 20 and formed into a film.
The films may optionally be stretched or oriented in any direction if so desired. In such stretching operation, the film may be stretched in either the direction coincident with the direction of movement of the film being withdravr~ from the casting roll; also referred to in the art as the machine direction, or in a direction 25 which is perpendicular to the machine direction, and referred to in the art as the transverse direction. or in both the machine direction and the transverse direction_ The films formed by any of the above methods may be of any thickness desired and includes those which have a thickness less than 2.54'rnm (104 tulle).
30 Preferably, the films have a thickness in the range of about 0.44254 nun (0.1 mif) and about 0.254 mm (10 mils); most preferably :.:.~:.:::::: .:. .: .::."r..:<.~,.~ ..;,e.~,: :...:::.
0 3 000 0 '....::
:.. ......E'1~'l~E~d~ ~v.~~A ~::'..:;2'~,.::1:815 5 2 - 7 - 17 _ _ _ ,. , . "_ _.............. ....
_ ~ .. _ _ ~ _ ~. ~ ~~:::n~:::.~:::::::::::::::u:::: :~:::..:::::::u;;; yr . .
. vv n . f W V ~ JV.w:::::.::::::::::::: :.:.
.::::;::-'::ai '~'';i~''':::: ,:.. ~..:'i:: :':'. . ~':','<:.::..:.:: ::
.::':.,:i:;:'::':'::":::
~: :. : ::. :. :. .: v i :. .: :. : .:. .:: :. :: :: :. .: . . ~ :. . ?. :. .:
i: % ~: '::4:::.::::.::!.::' :: T * i.: :~w : ~ : ~ :: :: :!~? ~:.:i:: :::.;v:.::::::::::.~:._::::::::: :~
: .:::: . i: .~. ~.: . ~::. ~ . . ..
the films have a thickness between about 0.025 mm (1 mil) and about 0.127 mm (5 mils). While such thicknesses are pccfczzed as providing a readily flexible film, it is to be understood that other film thicknesses may be produced to satisfy a particular need.
The above-described films are characterized by being soft and flexible as well as heat stable, so that bags formed froth these filins have the same attributes which are panicularly desirable in bags used in hornc dry cleaning pmcesscs. These films may be fomaed into bass by any conventional technique. For example, when made by a blown film process the bubble could be collapsed and one end heat sealc3, leaving the other end open. Or a flat cast film can be centerfolded and the sides and one end heat sealed. Obviously other techniques can be used to form the bags. These bags may lx provided with conventional closing means which arc used to enclose the contents prior to use.
In accordance with this invention, bags formed from the above-described films 1 ~ are used in a process of cleaninb fabrics, especially clothes, such as in a typical home dryer. The soiled clothes are placed in the bag together with one or more cleansing agents and the open ends) of the bag is secured, 'fhe cleansing agent rnay be incorporated into a carrier, such as a non-woven fiber sheet. The bag is then placed into the dnun of a cony ention2l automatic clothes dryer. When the clothes dryer is . started, the dnim is rotated and hot air is introduced in the dryer. The amount of time which the bag remains in the dryer is dependent upon a number of factors, such as the amount of clothes, their degree of soilness, the effectiveness of the cleansing agent, the temperature in the dryer and similar considerations. Typical times may range, for example, from about ~ minutes to about 40 minutes at aiz temperatures in the range of about 50 to about 400°C, for example.
The bags cant be used with any conventional clothes dryer, such as electric, natural gas or propane gas dryers.
By using films formed from a blend of nylon hom~poiymer and nylon copolymer, preferably a blend of nylon 6 and ny Ton 6166, to form the clothes bags the ::~~'>>:.:.,::;::::__::::~:v::~::
;:~.~1~'i~Qt~ '~~CA 0 2 31815 5 2 0 0 0 0 7 17 ..
:::. :.: . ... . . . .:. .
bags are resistant to hot spots which may occur during the operation of the dryer. As a result, the bag material does not melt during the dry cleaning operation in the dryer.
In addition, the films of this invention are soft and flexible, as well as heat stable.
tw.1 fY /~ \~ . .
~!:~sT~ ~IJTc,.. L~-' _ :. _ .;s,.:::>
.....
...::::::::>:~'.>.-<:::::.;::::=>:.<.::::.:: '<' ::::~x'..i~'l'.ta~':::;:::;::..: :::::..::::::.:~ :::. - _ ....:
::.....:......' ':~WA:..~23:18_155 2000 07 17 ...
Claims
What is claimed is:
1. In a process for cleaning fabrics in a conventional automatic clothes dryer wherein soiled fabrics are pieced in a plastic bag, the plastic bag is placed into the drum of the dryer, the dryer is rotated and hot air is introduced into the dryer, the improvement comprising forming said bag from a nylon film composition selected from the groups consisting of (a) a blend comprising at least one nylon homopolymer and at least one nylon copolymer, or (b) at least one nylon copolymer.
2. The process of claim 1 wherein said nylon film is formed from a blend of at least one nylon homopolymer and at least one nylon copolymer.
3. The process of claim 2 wherein said nylon homopolymer is selected from the group consisting of nylon 6, nylon 66, and mixtures thereof.
4. The process of claim 2 wherein said nylon copolymer is selected from the group consisting of nylon 6/66, nylon 6/12, and mixtures thereof.
5. The process of claim 1 wherein said film is formed from a blend of nylon 6 homopolymer and nylon 6/66 copolymer.
6. The process of claim 5 wherein said blend comprises from about 40 to about weight percent of nylon 6, and correspondingly from about 60 to about 20 weight percent of nylon 6/66 copolymer.
7, The process of claim 6 wherein said blend comprises from about 55 to about weight percent of nylon 6, and correspondingly from about 45 to about 25 weight percent of nylon 6/66 copolymer.
8. The process of claim 5 wherein said nylon 6/66 copolymer comprises from about to about 35 percent by weight of nylon 6 segments and correspondingly from about 90 to about 55 percent by weight of nylon 66 segments.
9. The process of claim 8 wherein said nylon 6/66 copolymer comprises from about 20 to about 30 percent by weight of nylon 6 segments and correspondingly from about 80 to about 70 percent by weight of nylon 66 segments.
14, The process of claim 1 wherein said nylon film is formed from a nylon copolymer.
11. The process of claim 10 wherein said nylon copolymer is selected from the group consisting of nylon 6/66, nylon 6/12, and mixtures thereof.
12. The process of claim 10 wherein said copolymer is nylon 6/66.
13. A plastic bag adapted for use in dry cleaning of fabrics contained therein, said bag being foamed from a nylon film selected from the groups consisting of (a) a film formed from a blend-comprising at least one nylon homopolymer and at least one nylon copolymer, or (b) a film formed from at least one nylon copolymer.
14. The bag of claim 13 wherein said bag is formed from a film comprising a blend of at least one nylon homopolymer and at least one nylon copolymer.
15. The bag of claim 14, wherein said bag is formed from a film comprising a blend of nylon 6 and nylon 6/66 copolymer.
16. The bag of claim 15 wherein said blend comprises from about 40 to about 84 weight percent of nylon 6, and correspondingly from about 60 to about 20 weight percent of nylon 6/66 copolymer.
17. The bag of claim 15 wherein said blend comprises from about 55 to about 75 weight percent of nylon b, and correspondingly from about 45 to about 25 weight percent of nylon 6/66 copolymer.
18. The bag of claim 15 wherein said nylon 6/66 copolymer comprises from about to about 35 percent by weight of nylon 6 segments and correspondingly from about 90 to about 65 percent by weight of nylon 66 segments.
19. The bag of claim 18 wherein said nylon 6/66 copolymer comprises from about to about 30 percent by weight of nylon 6 segments and correspondingly from about 80 to about 70 percent by weight of nylon 66 segments.
20. The bag of claim 13 wherein said bag is formed from at least one nylon copolymer.
21. The bag of claim 20 wherein said nylon copolymer is selected from the group consisting of nylon 6/66, nylon 6/12, and mixtures thereof.
22. The bag of claim 20 wherein said bag is formed from a nylon 6/66 copolymer.
23. The bag of claim 13 wherein said bag is formed from a nylon film comprising a blend of nylon 6 and nylon 6/66 copolymer.
34. The bag of claim 13 wherein said bag is formed from a nylon film comprising a blend of (a) a nylon polymer selected from the group consisting of nylon 6, nylon 66, and mixtures thereof, and (b) a nylon 6/66 copolymer.
1. In a process for cleaning fabrics in a conventional automatic clothes dryer wherein soiled fabrics are pieced in a plastic bag, the plastic bag is placed into the drum of the dryer, the dryer is rotated and hot air is introduced into the dryer, the improvement comprising forming said bag from a nylon film composition selected from the groups consisting of (a) a blend comprising at least one nylon homopolymer and at least one nylon copolymer, or (b) at least one nylon copolymer.
2. The process of claim 1 wherein said nylon film is formed from a blend of at least one nylon homopolymer and at least one nylon copolymer.
3. The process of claim 2 wherein said nylon homopolymer is selected from the group consisting of nylon 6, nylon 66, and mixtures thereof.
4. The process of claim 2 wherein said nylon copolymer is selected from the group consisting of nylon 6/66, nylon 6/12, and mixtures thereof.
5. The process of claim 1 wherein said film is formed from a blend of nylon 6 homopolymer and nylon 6/66 copolymer.
6. The process of claim 5 wherein said blend comprises from about 40 to about weight percent of nylon 6, and correspondingly from about 60 to about 20 weight percent of nylon 6/66 copolymer.
7, The process of claim 6 wherein said blend comprises from about 55 to about weight percent of nylon 6, and correspondingly from about 45 to about 25 weight percent of nylon 6/66 copolymer.
8. The process of claim 5 wherein said nylon 6/66 copolymer comprises from about to about 35 percent by weight of nylon 6 segments and correspondingly from about 90 to about 55 percent by weight of nylon 66 segments.
9. The process of claim 8 wherein said nylon 6/66 copolymer comprises from about 20 to about 30 percent by weight of nylon 6 segments and correspondingly from about 80 to about 70 percent by weight of nylon 66 segments.
14, The process of claim 1 wherein said nylon film is formed from a nylon copolymer.
11. The process of claim 10 wherein said nylon copolymer is selected from the group consisting of nylon 6/66, nylon 6/12, and mixtures thereof.
12. The process of claim 10 wherein said copolymer is nylon 6/66.
13. A plastic bag adapted for use in dry cleaning of fabrics contained therein, said bag being foamed from a nylon film selected from the groups consisting of (a) a film formed from a blend-comprising at least one nylon homopolymer and at least one nylon copolymer, or (b) a film formed from at least one nylon copolymer.
14. The bag of claim 13 wherein said bag is formed from a film comprising a blend of at least one nylon homopolymer and at least one nylon copolymer.
15. The bag of claim 14, wherein said bag is formed from a film comprising a blend of nylon 6 and nylon 6/66 copolymer.
16. The bag of claim 15 wherein said blend comprises from about 40 to about 84 weight percent of nylon 6, and correspondingly from about 60 to about 20 weight percent of nylon 6/66 copolymer.
17. The bag of claim 15 wherein said blend comprises from about 55 to about 75 weight percent of nylon b, and correspondingly from about 45 to about 25 weight percent of nylon 6/66 copolymer.
18. The bag of claim 15 wherein said nylon 6/66 copolymer comprises from about to about 35 percent by weight of nylon 6 segments and correspondingly from about 90 to about 65 percent by weight of nylon 66 segments.
19. The bag of claim 18 wherein said nylon 6/66 copolymer comprises from about to about 30 percent by weight of nylon 6 segments and correspondingly from about 80 to about 70 percent by weight of nylon 66 segments.
20. The bag of claim 13 wherein said bag is formed from at least one nylon copolymer.
21. The bag of claim 20 wherein said nylon copolymer is selected from the group consisting of nylon 6/66, nylon 6/12, and mixtures thereof.
22. The bag of claim 20 wherein said bag is formed from a nylon 6/66 copolymer.
23. The bag of claim 13 wherein said bag is formed from a nylon film comprising a blend of nylon 6 and nylon 6/66 copolymer.
34. The bag of claim 13 wherein said bag is formed from a nylon film comprising a blend of (a) a nylon polymer selected from the group consisting of nylon 6, nylon 66, and mixtures thereof, and (b) a nylon 6/66 copolymer.
Applications Claiming Priority (5)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US7129598P | 1998-01-16 | 1998-01-16 | |
| US22672899A | 1999-01-07 | 1999-01-07 | |
| US09/226,728 | 1999-01-07 | ||
| US60/071,295 | 1999-01-07 | ||
| PCT/US1999/001042 WO1999036610A1 (en) | 1998-01-16 | 1999-01-18 | Use of nylon films in home dry cleaning bags |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA2318155A1 true CA2318155A1 (en) | 1999-07-22 |
Family
ID=26752067
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA002318155A Abandoned CA2318155A1 (en) | 1998-01-16 | 1999-01-18 | Use of nylon films in home dry cleaning bags |
Country Status (7)
| Country | Link |
|---|---|
| EP (1) | EP1049831A1 (en) |
| JP (1) | JP2002509011A (en) |
| KR (1) | KR20010034207A (en) |
| CN (1) | CN1293726A (en) |
| AU (1) | AU2234899A (en) |
| CA (1) | CA2318155A1 (en) |
| WO (1) | WO1999036610A1 (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2000052250A1 (en) * | 1999-03-01 | 2000-09-08 | Alliedsignal Inc. | Use of nylon films in home dry cleaning and/or fabric refreshing bags |
| AU7742300A (en) * | 1999-10-01 | 2001-05-10 | Procter & Gamble Company, The | Methods for laundering delicate garments in a washing machine |
| DE19957663A1 (en) * | 1999-11-30 | 2001-05-31 | Basf Ag | Continuous production of copolyamides based on a lactam, a diamine and a dicarboxylic acid , useful for the production of fibers, sheet and molded articles comprises a three step reaction sequence. |
| FR2938846B1 (en) * | 2008-11-24 | 2012-12-07 | Rhodia Operations | THERMOPLASTIC POLYMER COMPOSITION BASED ON POLYAMIDE |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3432253A (en) * | 1966-04-27 | 1969-03-11 | Peter Ray Dixon | Fabric cleaning process |
| GB8923285D0 (en) * | 1989-10-16 | 1989-12-06 | Unilever Plc | Fabric conditioning article |
| US5206309A (en) * | 1991-03-06 | 1993-04-27 | Allied Signal Inc. | Heat stable film composition comprising polyepsiloncaprolactam |
| US5681355A (en) * | 1995-08-11 | 1997-10-28 | The Procter & Gamble Company | Heat resistant dry cleaning bag |
-
1999
- 1999-01-18 KR KR1020007007854A patent/KR20010034207A/en not_active Application Discontinuation
- 1999-01-18 CA CA002318155A patent/CA2318155A1/en not_active Abandoned
- 1999-01-18 JP JP2000540308A patent/JP2002509011A/en active Pending
- 1999-01-18 WO PCT/US1999/001042 patent/WO1999036610A1/en not_active Application Discontinuation
- 1999-01-18 AU AU22348/99A patent/AU2234899A/en not_active Abandoned
- 1999-01-18 EP EP99902342A patent/EP1049831A1/en not_active Withdrawn
- 1999-01-18 CN CN99804069A patent/CN1293726A/en active Pending
Also Published As
| Publication number | Publication date |
|---|---|
| CN1293726A (en) | 2001-05-02 |
| EP1049831A1 (en) | 2000-11-08 |
| WO1999036610A1 (en) | 1999-07-22 |
| AU2234899A (en) | 1999-08-02 |
| KR20010034207A (en) | 2001-04-25 |
| JP2002509011A (en) | 2002-03-26 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US5206309A (en) | Heat stable film composition comprising polyepsiloncaprolactam | |
| KR100507419B1 (en) | Hyperbranched copolyamide, composition based on said hyperbranched copolyamide and method for obtaining same | |
| US4207404A (en) | Compositions of chlorinated polyethylene rubber and nylon | |
| US3966839A (en) | Homogeneous blends of polyamides with vinyl aromatic resins | |
| US7375165B2 (en) | Thermoplastic composition comprising a hyperbranched polymer additive and articles made using said material | |
| CA2318155A1 (en) | Use of nylon films in home dry cleaning bags | |
| US5006403A (en) | Wholly aromatic polyester fiber-reinforced poly(phenylene oxide) and process for preparing same | |
| JPS61213261A (en) | Blend of polyesteramide and polyamide | |
| EP0037430A1 (en) | A melt compounded blend of a polyamide resin and a small amount of a finely divided adduct and process for preparing the same | |
| US4529776A (en) | Compositions of ionic elastomer and nylon | |
| EP0009757A1 (en) | Polyamide resins and process for preparing the same | |
| JPH0693141A (en) | Polymer composition based on copolyamide | |
| MXPA00006999A (en) | Use of nylon films in home dry cleaning bags | |
| US3634023A (en) | Surface finish for nylon monofilament | |
| JP3322045B2 (en) | Fiber mixture, fiber molded body, and method for producing fiber molded body | |
| WO2000052250A1 (en) | Use of nylon films in home dry cleaning and/or fabric refreshing bags | |
| JP2705515B2 (en) | Polyamide fiber | |
| JP2710276B2 (en) | Polymer molding materials | |
| JPH08217933A (en) | Resin composition | |
| JP2006523268A (en) | Colored polymeric articles having a high melting temperature | |
| Boussenane et al. | Effect of the Viscosity Ratio, Composition and Enhancement of Interface on Melt Rheology and Concomitant Morphology of Model Polyalloy | |
| Agrawal et al. | RHEOLOGICAL BEHAVIOR OF PA6/PEGAA/LDPE BLEND AND THE EFFECT OF THE MIXING SEQUENCE ON THE MECHANICAL PROPERTIES AND MORPHOLOGY | |
| JPS6356322B2 (en) | ||
| JPH024685B2 (en) | ||
| JPS5880342A (en) | Polyalkylene terephthalate composition and preparing same |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| FZDE | Dead |