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. The resins of example 4b and 4d show good ball tack and sufficiently high shear strengths.

These resins have an improved adhesive performance in hot melt pressure sensitive adhesive compositions. The escoreez obtained polymer-solvent mixtures may be stripped to remove unreacted hydrocarbons, solvents and low molecular weight oligomers. All three resins are within the scope of this invention as defined by 2023 appending claims and all are based on a feed 5 containing cyclodiolefinic components.

Aliphatic petroleum-based resins having controlled softening points and molecular weights and hot melt pressure sensitive adhesive containing same. Method for the determination of the MMAP: Admissibility of the Requests 2.

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Other cyclic dienes which are formed by co-dimerization of the cyclic dienes with C5 linear conjugated dienes or other reactive olefinic components in the petroleum feed stream, can also contribute to a higher degree of cyclic structures in the final resin. Example 6 Table 7 shows the results of several resins in a hot melt pressure sensitive adhesive composition in comparison to each other. Table 2 shows the effect of using higher reaction temperatures for a feed with and a feed without cyclodiolefinic components on the final resin properties.

The hot melt pressure sensitive adhesive composition generally consists of an S-I-S block copolymer, a petroleum tackifier resin as described in this invention and other additives as known in the art like hydrocarbon extender oils, antioxidants, colorants, fillers etc. 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.


A hot melt pressure sensitive adhesive composition according to claim 7 wherein the polymer is an S-I-S block copolymer containing 10 to 30 parts by weight of styrene.

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The mixture was deactivated with water and washed in three steps with water before it was stripped under vacuum and with steam to remove the solvent and all the low molecular weight materials. The Methylcyclohexane 203 substituted for the heptane used in the standard test procedure.

Opponent I further submitted that the patent proprietor was not entitled to the first priority US dated 15 December Average compositions of two used petroleum feed streams, with and without cyclodiolefins are given below. A typical composition of the used petroleum feed streams with and without cyclodiolefins and the plant recycled solvent is given below: The main request is therefore not allowable.

The method according to claim 16 or 17 characterized that the increase of cyclic structures is observed by measuring the hot melt viscosity of the petroleum-based aliphatic resin or of a hot melt pressure sensitive adhesive resin composition wherein said resin is used. The claimed solution to this problem by the choice of the specific coating temperature range and coating speed was obvious because these features were already foreshadowed in D The method according to claim 16 characterized in that the amount of cyclic structures is increased by varying one or more of the following parameters in the polymerization reaction a reaction temperature, b amount of catalyst, c amount of chain transfer agent, d amount of cyclodiolefinic components in feed.

Low viscosity hot melt pressure sensitive adhesive compositions Applicant name: The subject-matter of the main request was considered not to be novel over the disclosures given in the documents D10, D23 and D O wt96 per total of polymerisable monomers Polymerization feed: Jacob is the inventor of the claimed subject-matter and the author of D29, which he distri buted himself during the presentation he gave during this seminar, the Respondent’s declaration is not open to doubt.


In the examples of the WO publication the values ” phr” or ” phr” were disclosed in conjunction with the specific tackifiers “E” and “Wingtack Extra”.

Handout distributed by L. 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.

US USA en Jacob eacorez was the inventor of the claimed subject-matter. Examples for cyclodiolefins are cyclopentadiene, dicyclopentadiene, methyl and ethyl derivatives of both components and codimers of the cyclopentadiene and the diolef ins. A label comprising a substrate and a hot melt pressure sensitive composition comprising a polymer and a petroleum based aliphatic resin, wherein said petroleum-based aliphatic resin has: Login to see your most recently viewed materials here.

Normally, the MMAP cloud point of commercially available non-modified aliphatic resins escroez on similar petroleum feed streams is 90 C or higher, whereas lower MMAP values could only be obtained with aromatic modified resins. Method for the determination of the MMAP: Examples 1 to 4 illustrate the effects of the polymerization conditions on the resin properties. The patent, entitled “Low viscosity hot melt pressure sensitive adhesive compositions” was granted with thirteen claims, Claims 1, 9 and 10 reading as follows:.

The desired increase esvorez the amount of cyclic structures in the aliphatic resins can e. Pressure sensitive adhesive compositions comprising rubber and a resinous interpolymer. Claim 1 of the main request reads as follows: The appeal is admissible. Thus obtained resins which are most suitable for use as tackifiers according to this invention have:. All resins mentioned herein were prepared in a continuous process, but a batch production would also be possible.