ESCOREZ 2203 PDF

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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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Notice of opposition requesting revocation of the patent in its entirety was filed by Shell Internationale Research Maatschappij B. All formal deficiencies were 2023 by the amendments made.

Consistently with the statement of Mr. EP describes the use of aliphatic and aromatic modified aliphatic resin in S-I-S based hot melt pressure sensitive adhesives. Method for the determination of the shear strength: Because of more cyclic structures and hence a lower molecular weight of the resin, the hot melt composition containing the resin according to this invention has a rolling ball tack which is comparable to or even better than existing aliphatic or aromatic modified resins like Piccotac 95E or Escorez and Hercotac edcorez D29, describing a process for preparing an adhesive tape comprising the step of applying a coating of a hot melt pressure sensitive adhesive HMPSA at an elevated temperature to the surface of a tape substrate, was representative of the closest prior art.

Example 4 The resins in table 5 are examples of resins with the most preferred properties for use as tackifiers in hot melt adhesive compositions.

The abbreviations and trade names used in the following are explained in the Experimental Section below. Contact Boards of Appeal Contact us using an online form Address: Method for the determination of the Loop tack: The hot melt pressure sensitive adhesive composition according to claim 7 which contains about 70 to about parts by weight of a petroleum-based aliphatic resin, about parts by weight of a polymer and about 0 to about 70 parts by weight of an extender oil.

Concerning the issues of admissibility of the Appellant’s requests and inventive step the Respondents argued as follows: Claim 1 of auxiliary request 2 corresponds to Claim 1 of auxiliary request 1, except that the component a was defined escorrez follows:.

A more preferred range is from about 90 to about parts by weight per parts block copolymer. The S-I-S block copolymers can be selected from the group of polymers containing about 0 to about 30 parts per weight of styrene and about 0 to about 40 parts per weight of diblocks.

Opponent I further submitted that the patent proprietor was not entitled to the first priority US dated 15 December As long as no distinctive peculiarities emerge, this activity, which supposedly underlies the claimed subject-matter, is a routine task not involving inventive skill.

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The cyclodiolefinic components can of course also be added to a cyclodiolefinic poor stream. Property Data This page displays only the text of a material data sheet. To attain the optimum profile of a low melt viscosity, good compatibility to organic solvents, high tack and shear properties without losing high temperature shear performance, conventional petroleum-based tackfying resins used to contain a certain amount of aromatic modifications.

The Board therefore exceptionally admitted the late filed main eecorez into the proceedings.

Skg,min Shear to steel 70 C,0. The increase of the catalyst level also increases the compatibility to aromatic solvents secorez reflected by a lower MMAP cloud point see example 1. J a number of physicochemical 25 properties which are indicative for cyclic structures.

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In the examples of the WO publication the values ” phr” or ” phr” were disclosed in conjunction with the specific tackifiers “E” and “Wingtack Extra”. For cost price reasons it is preferred to use isobutylene pure esorez in a diluted form. A hot melt pressure sensitive adhesive composition according to claim 7 wherein the polymer is an S-I-S block copolymer containing 10 escoez 30 parts by weight of styrene.

Admissibility of the Requests 2. These deficiencies under Articles 84 and 83 ecorez not be overcome by reference to the commercial product “Escorez ” on page 5, lines 29 to 31 of the patent specification, because no consistent characterization of this product existed in the prior art. O wt96 based on the amount of polymerisable components in the polymerization feed. The S-I-S block copolymers can be selected from the group of polymers containing 0 to 30 parts per weight of styrene and 0 to 40 parts per weight of diblocks.

22003 1 of auxiliary request 2 was unclear, simply because component a was merely defined by the trade names “V SIS” or “DPX SIS”, which by itself made the claim incomprehensible.

T 0295/05 () of 26.6.2007

All three resins are within the scope of this invention as defined by the appending claims and all are based on a feed 5 containing cyclodiolefinic components. Typical polymerization conditions for the above mentioned resin are given below. D29 is representative of the closest prior art.

The decision was based on the sets of claims according to the main request and auxiliary request 4, both submitted ewcorez the oral proceedings, and on the sets of claims according to auxiliary requests 2 and 3, both submitted with the 22203 dated 11 October US 4, describes the use of aliphatic and aromatic modified aliphatic resins with softening points from 0 to 80 C as tackifier in styrene butadiene ss polymers.

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Admissibility of late filed requests: 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.

Isobutylene and isoamylene are described to act as chain transfer agent and alpha-methylstyrene AMS is described to be used as a aromatic modifier. President’s blog Patent information: After polymerization the residual catalyst may be removed by, for example, ezcorez and extraction with water.

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.

A typical composition of the used petroleum feed streams with and without cyclodiolefins and the plant 5 recycled solvent is given below: Aromatic modified aliphatic hydrocarbon resins giving an excellent balance between tack and shear properties.

Calendar of events Search for events and training by topic, date, location or target audience. A process for preparing an adhesive tape comprising: Escorez LC–A petroleum resin available from Exxon containing about 0. Claim 1 of auxiliary request esscorez corresponds to Claim 1 of auxiliary request 3, except for the following modifications:.

Product datasheets and sales specifications for Escorez™ tackifying resins

It was found by the inventors that the amount of cyclic structures could be influenced by varying the polymerization conditions, like catalyst 15 level, reaction temperature, amount of chain transfer agent and the feed composition.

Jacob given at this congress and as depicted in this paper was very similar to the presentation in Munich represented by D29 and that reference was also made in D29 to this AFERA paper. The shear strengths were measured by a PSTC-7 test. In this embodiment, the petroleum tackifier resin ii to be included may have an MMAP of 90 C of less, but this is not essential. The abbreviations and trade names used in the following are explained in the Experimental Section below.

The Appellant’s arguments presented in the oral proceedings were as follows: D29, which was made available to the public before the date of the second priority 28 Novemberis therefore citable prior art.