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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In addition, it was not clear, contrary to Article 84 EPC, whether the indication “from The ultimate resins of this invention have the following properties: Auxiliary requests 1, 3 and 4 were submitted during the oral proceedings and auxiliary request 2 was filed with the letter dated 21 June 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: It would therefore be desirable to provide a cheaper petroleum-based resin 25 which exhibits similar or even better application properties than aromatic modified resins.
Secondly, they are less suitable for hydrogenation, hydrotreatment and quenching processes to improve the resin colour, before 20 they are used in any application. Users requiring more precise data for scientific or engineering calculations can click on the property value to see the original value as well as raw conversions to equivalent units.
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Skg,min Shear to steel 70 C,0. The quantity of the petroleum resin used in combination with the block copolymer may range from 70 to parts by weight per parts of block copolymer. Escorex hot melt pressure sensitive adhesive eacorez according to claim 6 wherein said polymer is selected from escorrez styrene-isoprene-styrene S-I-S polymer, a styrene-butadiene SB polymer, a styrene-butadiene-styrene SBS polymer, an ethylene-vinylacetate-polymer EVAand a butadiene-vinylacetate-polymer BVA.
Method for the determination of the viscosity: The catalyst can be chosen from escorze 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.
Method for the determination of the peel strength: Preparation 2023 conjugated diene-monoalkenyl arene block copolymers having a low polydispersity index. The subject-matter of the main request was considered not to be novel over the disclosures given in the documents D10, D23 and D To determine the Gardner color the resin was mixed with reagent grade toluene at room temperature until all the resin was dissolved. Such a hot melt pressure sensitive adhesive composition can be used in a variety of forms.
Claim 1 of auxiliary request 3 differs from Claim 1 of auxiliary request 1 by the following modifications: Example 2 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.
A higher aromatic modified resin RESIN B, about 18 wt96 5 per resin aromatic modified showed a higher amount of aromatic protons. To determine whether the MMAP decrease was caused escore the incorporation of toluene from the process solvent or by the cyclization reaction, IR and NMR analyses were conducted to determine the amount of 22203 protons present in the resin.
Use escorfz a resin according to any of claims 1 to 3 for the preparation of a hot melt pressure sensitive adhesive composition. The Opposition Division held that the problem to be solved was the provision of low viscosity HMPSA hot melt pressure sensitive adhesive compositions which can be applied to substrates as a melt using high speed coating equipment.
The Methylcyclohexane is substituted for the heptane used in the standard test procedure.
Inventive step had already been discussed in the opposition proceedings and in the written appeal proceedings, and the amended main request did not give rise to any further matters which the Respondents were not in a position to address. The resulting resin has a lower melt viscosity in a hot melt pressure sensitive composition. This is illustrated in the following table: As chain transfer agent generally isobutylene, 2-methylbutene, 2-methylbutene or their dimeric oligomers are used to obtain resins with a lower and narrower molecular weight distribution.
Process for producing sulfur modified polychloroprene in the presence of quaternary ammonium salts. This is illustrated in the following table:. ecsorez
ExxonMobil Escorez™ LC (AM & EU) Tackifying Resin
While the invention has been described with respect to specific embodiments, it should be understood that they are not intended to be limited, and that variations and modifications are possible without departing from the scope of the appended claims. 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 The coated substrate is then cooled.
Examples of cycloolefins are cyclopentene and cyclohexene. Admissibility of the Requests 2. The hot melt pressure sensitive adhesive composition according to claim 8 which comprises: Under these circumstances the case became much simpler and – as regards the subject-matter of the main request – the issue of inventive step was the only point of discussion remaining in the oral proceedings.
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Hot melt pressure sensitive adhesive composition useful for contact coating on heat sensitive substrates. Lange LICO apparatus. Z5 It is clearly shown that the amount of protons in the aromatic range for the Inventive Resin is comparable to other aliphatic resins like HercuresD C and PiccotacD 95E.
T 0295/05 () of 26.6.2007
The reaction time is typically from about 1. Contrary to the argument of the Appellant, no such simplification of the case occurs by the late filing of these requests. The peel strength is measured by a PSTC-1 test. 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 resins in table 5 are examples of resins with the most preferred properties for use as tackifiers in hot melt adhesive compositions.
Auxiliary requests 2 and 3 were not allowed under Article 2 EPC. Pressure sensitive adhesive compositions comprising rubber and a resinous interpolymer. Again the resulting resin caused a lower melt viscosity in the hot melt pressure sensitive composition together with excellent tack and shear properties see example 2.