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Packaged adhesive unit

A technology of adhesives, bituminous binders, applied in the field of manufacturing bituminous compositions, capable of solving problems such as drops, changes in adhesive properties, costly safety procedures, etc.

Pending Publication Date: 2022-04-26
SHELL INT RES MAATSCHAPPIJ BV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, this is costly in terms of energy usage and requires strict safety procedures
Also, if the adhesive is stored at elevated temperature for an extended period of time, this can lead to changes in the adhesive properties, so storage time is usually limited to avoid deterioration of the adhesive properties

Method used

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Examples

Experimental program
Comparison scheme
Effect test

example

[0097] The present invention will now be described by reference to examples, which are not intended to limit the invention.

example 1

[0099] Load tests were carried out on adhesive units of packages containing 95 to 105 g of adhesive comprising a double layer of sealable laminating adhesive according to the present invention in order to compare their properties with those comprising Adhesive units of other packages of casings not made of the material according to the invention were compared.

[0100] Other shells made of materials not according to the invention are LDPE only, LDPE / HDPE laminates, LLDPE / HDPE laminates, BOPP only and CPP only.

[0101] Adhesive units of packages comprising BOPP only, CPP only, BOPP / CPP and BOPET / LDPE were subjected to a 7 day load test at 60°C under a load of 2T. However, for adhesive units of packages containing LDPE only, LDPE / HDPE laminates and LLDPE / HDPE laminates, shorter cycles were applied at lower temperatures and less loads, as shown in Table 1, to determine their integrity limitations as these materials are not as strong as BOPP / CPP and BOPET / LDPE.

[0102] The res...

example 2

[0107] Bituminous compositions were evaluated for resistance to water damage according to standard test AASHTO T283 to determine how the presence of a sealable laminated double layer in the bituminous composition affects the performance of the bituminous composition.

[0108] image 3 The results presented in show that the stiffness of bituminous mixtures and the effect of moisture on stiffness are similar for adhesives with and without sealable lamination bilayers (BOPP-CPP and BOPET-LDPE).

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Abstract

The present invention provides a packaged adhesive unit comprising an adhesive core retained within a sealable laminated double layer, where the sealable laminated double layer comprises a biaxially oriented polymer layer and a non-biaxially oriented polymer layer, and where the adhesive core comprises an asphalt adhesive or a synthetic adhesive. The invention also relates to the use of the binder unit for producing asphalt compositions. The invention further provides a method for manufacturing an asphalt composition, said method comprising the step of mixing the binder unit according to the invention with an aggregate heated to a temperature in the range of 140 DEG C to 220 DEG C in a mixing unit. Furthermore, the invention provides a method for manufacturing an asphalt pavement comprising a step in which asphalt is prepared by the method according to the invention, and a further step in which the asphalt composition is spread into a layer and the layer is compacted, in which the compaction in the step is suitably carried out at a temperature of 120 DEG C to 180 DEG C.

Description

technical field [0001] The present invention relates to a packaged adhesive unit. The invention also relates to the use of the packaged binder unit for the manufacture of a bituminous composition. The invention further relates to methods of making bituminous compositions and bituminous pavements using the packaged binder unit. Background technique [0002] Bitumen is a complex mixture of hydrocarbons that may occur naturally or may be a product of petroleum / crude distillation. Depending on the temperature to which it is exposed, it may be a viscous liquid or solid and gradually softens when heated. Bitumen can be combined with aggregates and usually fillers to provide bituminous compositions that can be used to make paved roads. Alternatively, bitumen can be used in industrial applications such as roofing, flooring or sealing. [0003] Synthetic binders such as Shell's "Mexphalte C" TM , has similar rheological and mechanical properties to bituminous binders commonly us...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B32B27/32B32B7/12B32B27/08B32B27/36C08L95/00B65D75/26B65D85/00
CPCB32B27/32B32B27/08B32B27/36B32B7/12C08L95/00B65D75/26B65D85/70B32B1/08B32B7/03B32B2307/31B32B2307/518B32B2553/00B32B2439/00B32B1/00B32B2250/24B32B2307/54B32B2439/46C04B20/1033C04B20/1037C04B20/123C04B26/26C04B40/0641C04B2111/0075
Inventor R·E·泰勒D·J·德梅洛S·M·巴塔查里亚
Owner SHELL INT RES MAATSCHAPPIJ BV
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