Tackifying Resin, Product Description: Escorez™ LC is a premium aromatic modified aliphatic hydrocarbon resin with a narrow molecular weight. Product datasheets and sales specifications for Escorez™ tackifying resins. Africa & Middle Escorez™ LC (AM & EU), 18, , Escorez™ , PRODUCT NAME: ESCOREZ series .. THE FOLLOWING MATERIALS: Petroleum hydrocarbon resin ECR | Escorez LC |.
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Method for the determination of the ball tack. Irganox an antioxidant containing mainly pentaerythrityl-tetrakis[3- 3,5-di-tert.
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The hot melt pressure sensitive adhesive composition according to claim 4 which further includes an extender oil. Process for the preparation of escorze modified aliphatic hydrocarbon resins giving an excellent balance between tack and shear properties. The peel strength is measured by a PSTC-1 test. US 4, describes the use of aliphatic resins prepared as described in US 3, in S-I-S escotez hot melt pressure sensitive adhesives.
Because the decrease of the viscosity is not caused by adding aromatic monomers to the polymerization feed, the resin according to this invention has advantages over other well known resins used in this kind of application:.
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Sequentially polymerized styrene-isoprene-styrene block copolymer adhesive composition. To determine the Gardner colour the resin was mixed with reagent grade toluene at room temperature until all the resin was dissolved. A hot melt pressure sensitive adhesive composition according to claims 6 to 8 which further includes an extender oil. The main request is therefore not allowable. Method for the determination of the SAFT: The quantity esdorez the 2230 resin used in combination with the block copolymer may range from about 70 to about parts by weight per parts of block copolymer.
Therefore D29, which was made available to the public before the second priority date of 28 Novemberbecame citable prior art.
The hot melt composition has a melt viscosity at C of less than lO0,preferably less than 80, mPas measured according to ASTM-D with a Brookfield 20 viscosity meter. The presence of the cyclodiolefins, like cyclopentadiene and dicyclopentadiene contribute already for a great part to the cyclic character of the resin and cause a lower melt viscosity of the hot melt formulation and a lower MMAP of the resin.
With a letter dated 25 May new sets of claims as bases for a new main request and auxiliary requests 1 to 5, replacing all former requests, were filed. Commonly, the resins of the present invention are prepared by Friedel-Crafts polymerization in which a S mixture of a cracked petroleum feed escordz a chain transfer agent in an inert solvent is treated with 1.
This was not due to any significant incorporation of 203 components because the proton NMR analyses showed no significant differences between regular aliphatic resins and the resins prepared according to this invention.
In the light of the above, the problem to be solved is seen in the provision of an HMPSA tape coating process which can be operated at coating speeds in excess of those exemplified in D The mixture was deactivated with water and washed in three 10 steps with water before it was stripped under vacuum and with steam to remove the solvent and all escorz low molecular weight materials.
22203 particular preferred tackifier for use in a hot melt pressure sensitive composition has the following typical properties see also example 4: It was argued that the presentation of Mr. Adhesive compositions comprising block copolymers of a monovinylaromatic compound and butadiene. A commercial sample of a petroleum feed without any cyclodiolefins is Shell’s NL super piperylene concentrate and a commercial sample of the preferred petroleum feed containing the desired cyclodiolefins is 5 Shell ‘ s NL regular piperylene concentrate.
Doubts further existed as to the validity of the first priority for the claimed subject-matter. Because the Board and the escores could not reasonably be expected to deal with these new issues without adjournment of the escodez – which contravenes the principle of procedural economy – auxiliary requests 1 to 4 were not admitted, in accordance with Article 10b 3 of the Rules of Procedure of the Boards of Appeal.
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Claim 1 of auxiliary request 2 was unclear, simply because component a was merely defined by the trade escofez “V SIS” or “DPX SIS”, which by itself made the claim incomprehensible.
Prior art resins with no aromatic modification failed to attain the above properties to a satisfactory extent. President’s blog Patent information: Again the resulting resin caused a lower melt viscosity in the hot melt pressure sensitive composition together with excellent tack and shear S properties see example 2. Example 6 2230 7 shows the results of several resins in a hot melt pressure sensitive adhesive composition in comparison to each other.
The appeal is admissible.
The hot melt pressure sensitive adhesive composition according to claim 8 which comprises: On 2 March the patent proprietor hereinafter: We advise that you only use the original value or one of its raw conversions in your calculations to minimize rounding error. In the course of the discussion, two further sets of claims as bases for auxiliary requests 3 Claims 1 to 4 and 4 Claims 1 to 4 were presented.
It is thus possible to obtain resins with a desired softening point and molecular weight distribution during the polymerization process independent of each other. The polymerization can be carried out in a continuous process or in a batch mode.
A hot melt pressure sensitive adhesive composition containing a mixture of: Examples for cyclodiolefins are cyclopentadiene, dicyclopentadiene, methyl and ethyl derivatives of both components and codimers of the cyclopentadiene and the diolefins.
The catalyst can be chosen from any suitable Friedel-Crafts catalyst, such as aluminum trichloride, aluminum bromide, aluminum fluoride, titanium tri and tetrachloride, tin tetrachloride, boron trifluoride, or 2s solutions, slurries or complexes thereof. The 223 resins according to this invention result in a lower melt viscosity of hot melt compositions wherein they are incorporated.
Particularly preferred application forms are adhesive tapes and labels. Method for the determination of the resin color: Lange LICO apparatus. The above formulations indicate that the amounts of polymer, resin and oil can be varied to control the hot melt viscosity while tack and shear properties still remain sufficient.
The Statement of the Grounds of Appeal was submitted on 13 May D29, which was made available to the public before the date of the second priority 28 Novemberis therefore citable prior 203. US USA en It was argued that the requests were late filed and escorrz from a number of escoez deficiencies under Articles 83, 84 and 2. Hercules Piccotac x95E hvdrocarbon resin – A petroleum resin without any polymerized aromatic components having a softening point of about 95 C and number average molecular weight of about Dalton.
The petroleum-based resin escoez an important influence on the physico-chemical properties of the adhesive such as its hot melt viscosity, compatibility to aromatic solvents, shear properties and tack properties.